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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To cancel DD’s birthday party because I know her dad will ruin it?

264 replies

SynthWaveX · 25/09/2026 15:35

DD is turning 10 next Saturday and I’ve booked a little party for her which she has been excited about for weeks. There will be about 10 girls from her class and her cousin, so 11 children altogether. It’s only a 2 hour party at the local community hall, with a cheap entertainer, pizza and cake. DD picked the theme and has been very clear she wants it small and just her friends, no adults making a fuss.

The problem is it falls on her dads weekend. We’ve been separated about 4 years and he normally has the DC alternate weekends. I had already agreed I’d do the party and he could have DD afterwards and take her out for dinner, presents etc. I genuinely thought that was a reasonable arrangement. He does see her regularly and I’m not trying to stop him being part of her birthday, I just thought the actual party could be the thing I had organised.

A few days ago he asked if his parents could come. I said the hall is quite small and it’s a drop off party, so I didn’t think extra adults would work. Then he said his GF and her 2 children would be coming too. Her children are about 7 and 4. DD apparently got upset when he told her and later said to me she didn’t want them there because “it’s my party and I don’t know what I’m meant to do with them”. She just wants it to be her friends and cousin, which is what we had planned.

There have been a few similar things before. He does have a habit of making things into quite big family occasions. Last Christmas he brought extra relatives along to something I’d arranged without checking first, and at DS’s school event he turned up with several people which was a bit chaotic. I’m not saying he doesn’t love the children because he does, and DD loves seeing her grandparents too. I know they enjoy having her and I’m not trying to keep them away. It’s just that sometimes he seems to think every event has to include everyone.

He said his parents haven’t seen DD for a little while and were looking forward to her birthday, and that I was making him look bad in front of his family. I said they can see her, and that he can have her straight after the party and take her for dinner and cake and give her presents etc. He then said he is her dad and shouldn’t have to “book an appointment” to attend his own daughters birthday. I did get annoyed at that because I’m not stopping him seeing her, I’m saying he can’t just add 4 extra people to something that was planned as a small party.

The hall has a proper maximum capacity and I’ve already paid for it, the entertainer, food and the cake. It isn’t just me being fussy about having extra people there. If all the children come plus me and the adults he wants to bring it would be over the number we’re allowed. He says some of the children won’t take up seats anyway and I’m being ridiculous about it. I’ve told him he can come on his own if he wants to, but he says that’s not the point because his family should be there too.

DD has now started saying she doesn’t even want the party. She said she’d rather I cancel it and take her shopping and for lunch with me. I honestly feel sick about it because she was so excited before all this started. I know she is only 10 and obviously doesn’t understand all the adult stuff, but I hate that she is now upset about something that was meant to be for her. It feels like whatever I do I’m going to make it worse, and maybe I already have by arguing with her dad about it.

DP thinks I should just stop negotiating with him and have the party as planned, and if he doesn’t want to come then that’s his choice. My mum thinks cancelling would be unfair on DD because she shouldn’t lose her party just because her parents can’t agree. I haven’t told the other parents anything yet because I don’t want to start making a drama out of it when it might still be sorted. I’m also annoyed because I’ve saved for this and already paid for everything, so cancelling it feels ridiculous, but obviously that’s not more important than DD being happy.

I’m now thinking I should just tell him he isn’t invited if he is bringing everyone else, keep the party exactly as planned and let him have DD afterwards. But then I worry she’ll feel like I deliberately excluded her dad from her birthday. The other option is cancelling it all and doing something with her instead, which she is now saying she wants anyway. I know how this sounds and I might be completely unreasonable here, but am I actually the one who’s ruining her birthday now? AIBU to just say no to all the extra people and carry on with the party?

OP posts:
Stompythedinosaur · 25/09/2026 16:49

I think you should rearrange for your weekend, if you can. And never book on his weekend in the future!

I wouldn't be accepting a bunch of randoms showing up at a party you've funded and didn't invite them to. Just say there's no space!

Lookingdownthebarrell · 25/09/2026 16:48

Remind him that he agreed to have her after her birthday and that DD wants her party with the people she’s invited only. Tell him that next time can be tell you in advance if he wants to be part of the organising and have an invite list etc but this time it will go ahead as planned by you.

Goatsarebest · 25/09/2026 16:48

Is it possible for there not to be anymore posts about 'you should have booked in on your weekend'. The OP has explained why she did it yet we have had another 10 posts having a dig at her. It's booked for Saturday because that is what their daughter wanted and there has always been flexibility around it.

It's pathetic him insisting on coming along with his partner's children and grandparents to his 10 year old daughter's party that she wants with her friends. How are all her friends going to feel. What are the 4 and 7 year olds and GPs actually going to be doing when she is with her friends. If they want a family get together have it straight after. There is absolutely no reason whatsoever for him to be there. It's a pathetic power play hidden behind self riotous 'Our family want to see her on her birthday'. Well they can, straight after the party.

The bit in OP about her daughter not understanding the adult stuff.
She will clearly understand the 'adult stuff' and remember this drama around her 10th birthday all her life.
You can tell him he's not invited, as you should. But he's going to use it to be a martyr and his family are going to be so hard done by for eternity. And anything to get back at you will be fair game. Which of course is going to be detrimental to your daughter long term. Only uiu know how much appeasement is required to keep things workable.

DuckbilledSplatterPuff · 25/09/2026 16:47

ps/// You could always point out to him that you haven't invited yourself and four other people to his family gathering.

OneNewEagle · 25/09/2026 16:47

I think you need to continue with the plans.

you should never have booked on his weekend as it’s made it all so difficult as this is not a thing he should be included in. Going forward only book things when DD is with you so he doesn’t even need to know.

5128gap · 25/09/2026 16:47

Does he have any sort of better nature that you can appeal to? Would it not move him at all if you told him DD was so upset by all this she doesn't want the party at all now? If not, I genuinely don't know what you can do, because an adult so selfish he'd impose his way at the expense of his daughters happiness is a bit of a lost cause tbh.

TheCabbageMerchant · 25/09/2026 16:46

Ezzee · 25/09/2026 15:55

It's their daughters birthday, his weekend/her weekend goes out the window.
If the daughter wants a party on a certain day with her friends then BOTH parents should be cool with this, it's not about their relationship or their other partner/parents/step children it is about the daughter...
Any decent parent would respect this!

Speaking from experience, no it doesn’t.

DuckbilledSplatterPuff · 25/09/2026 16:44

I think you'd be mad to cancel.
I think you are already imagining his complaints if you stand up to him.
So bloody what if he does say all that.
You know you've been fair minded in co parenting.. he doesn't get to change all your plans..
He agreed you could have the party on that weekend. So that's that.
Let him complain. Put him on mute.
If he moans at pick up.. just shrug and say on repeat. You'll be pleased to know DD has had a great time. Please don't spoil it for her arguing over nothing.

You've given him far too much information about the party, who is helping etc. Stop telling him things. Describe your mum as helping in the kitchen and tell him the girls have requested that you and Mum keep a low profile and let them enjoy themselves without being overlooked. Can't do that with an additional four adults and two much younger children.

The fact that he's been privy to all the information means he considers that he has a right to agree to it, or give permission or his opinion when its nothing to do with him. Information diet!

Could you message to say. ( or words to the effect of)

"Please let DD have her time with her friends as she planned and as we agreed. without adding extra guests.

This is just a very small drop off party with no parents. Its a very small friendship group of 10 year old girls from DDs school with activities DD has chosen accordingly which are paid for and provided only for her school friends.

It is not suitable for much younger children who don't know the rest of them and I will already be too busy supervising the party to deal with anything else.

DD will be seeing your family immediately afterwards to celebrate again.
I will drop DD to you at xyz O clock so she can start her family celebrations with you as we agreed. "

Also I think it helps to think of it as a birthday week.
And don't invite him to these things again. It's pure emotional blackmail to hint that you are depriving the grandparents. Let them host their own party for DD the next day if they are that worried.
Best of luck
PS. cutting and wrapping the cake is a complete pain when you are short handed (I used to get a second similar cake and pre cut and wrapped for the party bags).

SynthWaveX · 25/09/2026 16:44

I think I probably should have made that clearer in the OP, but DD specifically wanted it on her actual birthday. She has been talking about having her friends there on the day for ages and that was the date she picked. The hall also only had that date available, so I didn’t really have another option.

Her dad did know it was on his weekend and agreed to her having the party then, with him having her afterwards. So I wasn’t trying to take his weekend away from him or arrange it without him knowing. We’ve swapped weekends around before for birthdays.

I do understand the point about him wanting to be there and I’m not saying he shouldn’t. I’m struggling more with the number of extra people because it was booked as a small party and the hall really does have a capacity limit. I might be being too rigid about it though, hence asking.

OP posts:
CatSquirrelDuck · 25/09/2026 16:44

ChestnutSquash · 25/09/2026 15:41

You should have booked on your weekend and not told him. Can you cancel?

This is the crux of the problem as he has form for ruining things by running roughshod over what everyone else has planned to do what he 'wants' with the cry of 'family'.

Learn from this, whatever you decide. Book events on your scheduled time.

TheLemonLemur · 25/09/2026 16:42

You should have organised it for your own weekend. Seems like you did it so you could have dd on her actual birthday and while your ex sounds like he is being difficult you lost the right to decide when you organised events on his weekend. I think you should tell him capacity (assume it is 15?) and that you have 12 people so he can invite grandparents as dd doesn't want young children there

Thisismetooaswell · 25/09/2026 16:39

Why did you book the party on a weekend day that he was due to have her? Why not have the party the weekend before or after?

Lifealwaysgetsbetter · 25/09/2026 16:38

SynthWaveX · 25/09/2026 15:35

DD is turning 10 next Saturday and I’ve booked a little party for her which she has been excited about for weeks. There will be about 10 girls from her class and her cousin, so 11 children altogether. It’s only a 2 hour party at the local community hall, with a cheap entertainer, pizza and cake. DD picked the theme and has been very clear she wants it small and just her friends, no adults making a fuss.

The problem is it falls on her dads weekend. We’ve been separated about 4 years and he normally has the DC alternate weekends. I had already agreed I’d do the party and he could have DD afterwards and take her out for dinner, presents etc. I genuinely thought that was a reasonable arrangement. He does see her regularly and I’m not trying to stop him being part of her birthday, I just thought the actual party could be the thing I had organised.

A few days ago he asked if his parents could come. I said the hall is quite small and it’s a drop off party, so I didn’t think extra adults would work. Then he said his GF and her 2 children would be coming too. Her children are about 7 and 4. DD apparently got upset when he told her and later said to me she didn’t want them there because “it’s my party and I don’t know what I’m meant to do with them”. She just wants it to be her friends and cousin, which is what we had planned.

There have been a few similar things before. He does have a habit of making things into quite big family occasions. Last Christmas he brought extra relatives along to something I’d arranged without checking first, and at DS’s school event he turned up with several people which was a bit chaotic. I’m not saying he doesn’t love the children because he does, and DD loves seeing her grandparents too. I know they enjoy having her and I’m not trying to keep them away. It’s just that sometimes he seems to think every event has to include everyone.

He said his parents haven’t seen DD for a little while and were looking forward to her birthday, and that I was making him look bad in front of his family. I said they can see her, and that he can have her straight after the party and take her for dinner and cake and give her presents etc. He then said he is her dad and shouldn’t have to “book an appointment” to attend his own daughters birthday. I did get annoyed at that because I’m not stopping him seeing her, I’m saying he can’t just add 4 extra people to something that was planned as a small party.

The hall has a proper maximum capacity and I’ve already paid for it, the entertainer, food and the cake. It isn’t just me being fussy about having extra people there. If all the children come plus me and the adults he wants to bring it would be over the number we’re allowed. He says some of the children won’t take up seats anyway and I’m being ridiculous about it. I’ve told him he can come on his own if he wants to, but he says that’s not the point because his family should be there too.

DD has now started saying she doesn’t even want the party. She said she’d rather I cancel it and take her shopping and for lunch with me. I honestly feel sick about it because she was so excited before all this started. I know she is only 10 and obviously doesn’t understand all the adult stuff, but I hate that she is now upset about something that was meant to be for her. It feels like whatever I do I’m going to make it worse, and maybe I already have by arguing with her dad about it.

DP thinks I should just stop negotiating with him and have the party as planned, and if he doesn’t want to come then that’s his choice. My mum thinks cancelling would be unfair on DD because she shouldn’t lose her party just because her parents can’t agree. I haven’t told the other parents anything yet because I don’t want to start making a drama out of it when it might still be sorted. I’m also annoyed because I’ve saved for this and already paid for everything, so cancelling it feels ridiculous, but obviously that’s not more important than DD being happy.

I’m now thinking I should just tell him he isn’t invited if he is bringing everyone else, keep the party exactly as planned and let him have DD afterwards. But then I worry she’ll feel like I deliberately excluded her dad from her birthday. The other option is cancelling it all and doing something with her instead, which she is now saying she wants anyway. I know how this sounds and I might be completely unreasonable here, but am I actually the one who’s ruining her birthday now? AIBU to just say no to all the extra people and carry on with the party?

tell him you’ve moved the date of the party and your daughter will surely keep quiet if it stops them coming..,

U53rName · 25/09/2026 16:35

And stop over-sharing. He doesn’t need to know that your mum is invited, or where/when the party is. You aren’t a couple. Just get on with your own thing on your weekends.

SplishSplash123 · 25/09/2026 16:33

Tell him the party is just for DDs friends. He doesnt need to know your mum is coming. He can organise something else for his own side of the family and GFs kids.

But really, you have messed up a bit by organising something on "his" weekend when you know he's like this. Don't leave things open to these issues in future.

AnneLovesGilbert · 25/09/2026 16:32

How small is this hall where 14 children and a handful of adults puts you over capacity?

If you wanted to dictate who attends you’ve muddied the waters by doing it on his weekend, as others have said. Of course he wants to be involved (he should also be paying half) and his parents and partner to attend. It’s very rude to say he can pick her up once it’s finished.

By all means cancel or reschedule but you’ll probably lose the money so why not flexible and include the grandparents and partner?

U53rName · 25/09/2026 16:32

Nope. And only cater for the 11–food, drinks, 11 paper plates & paper napkins, 11 plastic cups. Tell him it’s a Y5 party that you’re funding, and you will only be catering for the 11 Y5 guests.

Would he be bringing an entourage if the party was pizza and a sleepover?

OhJacintaWhatNow · 25/09/2026 16:29

DisforDarkChocolate · 25/09/2026 16:08

Perhaps her daughter wanted her party on that day and hasn't grasped what a twat her Dad is yet?

Absolutely, sorry, I didn't mean to be arsey @SynthWaveX - it was more in your op, it looked like you had discussed this with the ex, and I just wanted to be clear what he had agreed...

Randomchat · 25/09/2026 16:27

Could you say that your mum can't (or won't) come so could he come and be your helper? But there won't be space for any other extra people.

Then both her parents are there on equal terms with no extras. He still gets his party afterwards.

I realise he's not going to be as much of a help as your mum, and your mum might be disappointed.

Boomer55 · 25/09/2026 16:27

SynthWaveX · 25/09/2026 15:35

DD is turning 10 next Saturday and I’ve booked a little party for her which she has been excited about for weeks. There will be about 10 girls from her class and her cousin, so 11 children altogether. It’s only a 2 hour party at the local community hall, with a cheap entertainer, pizza and cake. DD picked the theme and has been very clear she wants it small and just her friends, no adults making a fuss.

The problem is it falls on her dads weekend. We’ve been separated about 4 years and he normally has the DC alternate weekends. I had already agreed I’d do the party and he could have DD afterwards and take her out for dinner, presents etc. I genuinely thought that was a reasonable arrangement. He does see her regularly and I’m not trying to stop him being part of her birthday, I just thought the actual party could be the thing I had organised.

A few days ago he asked if his parents could come. I said the hall is quite small and it’s a drop off party, so I didn’t think extra adults would work. Then he said his GF and her 2 children would be coming too. Her children are about 7 and 4. DD apparently got upset when he told her and later said to me she didn’t want them there because “it’s my party and I don’t know what I’m meant to do with them”. She just wants it to be her friends and cousin, which is what we had planned.

There have been a few similar things before. He does have a habit of making things into quite big family occasions. Last Christmas he brought extra relatives along to something I’d arranged without checking first, and at DS’s school event he turned up with several people which was a bit chaotic. I’m not saying he doesn’t love the children because he does, and DD loves seeing her grandparents too. I know they enjoy having her and I’m not trying to keep them away. It’s just that sometimes he seems to think every event has to include everyone.

He said his parents haven’t seen DD for a little while and were looking forward to her birthday, and that I was making him look bad in front of his family. I said they can see her, and that he can have her straight after the party and take her for dinner and cake and give her presents etc. He then said he is her dad and shouldn’t have to “book an appointment” to attend his own daughters birthday. I did get annoyed at that because I’m not stopping him seeing her, I’m saying he can’t just add 4 extra people to something that was planned as a small party.

The hall has a proper maximum capacity and I’ve already paid for it, the entertainer, food and the cake. It isn’t just me being fussy about having extra people there. If all the children come plus me and the adults he wants to bring it would be over the number we’re allowed. He says some of the children won’t take up seats anyway and I’m being ridiculous about it. I’ve told him he can come on his own if he wants to, but he says that’s not the point because his family should be there too.

DD has now started saying she doesn’t even want the party. She said she’d rather I cancel it and take her shopping and for lunch with me. I honestly feel sick about it because she was so excited before all this started. I know she is only 10 and obviously doesn’t understand all the adult stuff, but I hate that she is now upset about something that was meant to be for her. It feels like whatever I do I’m going to make it worse, and maybe I already have by arguing with her dad about it.

DP thinks I should just stop negotiating with him and have the party as planned, and if he doesn’t want to come then that’s his choice. My mum thinks cancelling would be unfair on DD because she shouldn’t lose her party just because her parents can’t agree. I haven’t told the other parents anything yet because I don’t want to start making a drama out of it when it might still be sorted. I’m also annoyed because I’ve saved for this and already paid for everything, so cancelling it feels ridiculous, but obviously that’s not more important than DD being happy.

I’m now thinking I should just tell him he isn’t invited if he is bringing everyone else, keep the party exactly as planned and let him have DD afterwards. But then I worry she’ll feel like I deliberately excluded her dad from her birthday. The other option is cancelling it all and doing something with her instead, which she is now saying she wants anyway. I know how this sounds and I might be completely unreasonable here, but am I actually the one who’s ruining her birthday now? AIBU to just say no to all the extra people and carry on with the party?

You should have booked it on your weekend. Can you change it?

Bananacrepewithnuts · 25/09/2026 16:25

The mistake was booking it on this weekend. You shouldn't have done that.
Can you cancel and move ?

It's his weekend so I can see where he's coming from. The party eats into his time.
As you've booked it on the wrong day I honestly think you've got to suck it up and let him invite who he wants.

Yes it's going to be cramped but if it's really tight for space hopefully the relatives will take the hint and see there isn't really room for them and leave her to enjoy the party with her friends.

Good luck with it all.
X

nomas · 25/09/2026 16:24

SynthWaveX · 25/09/2026 16:08

My mum will be there because she’s helping me with the food/cake etc, but DP probably won’t be there for the actual party because he’ll be working that night. So I can see why he thinks it’s unfair if my mum is there and his parents aren’t, but it was never meant to be a family party, I just need an extra adult there to help.

I do understand why he wants to be there, I really do. If it was just him I wouldn’t have an issue at all. It’s the suddenly bringing his GF, her 2 children and his parents as well when the whole thing was planned as a small drop off party that I’m struggling with.

You're separate families now, he can't expect to attend events that you've paid for. Fair enough if you agree for him to come but for him to add on additional guests is unacceptable.

Tell him that you have max occupancy and that he can't come. He didn't say you could only have dd that weekend if you invite his other guests.

Is he likely to say you can't have dd that weekend anymore?

DeftGoldHedgehog · 25/09/2026 16:22

Newyearawaits · 25/09/2026 16:09

100pc agree with this

Such bollocks. Grandparents never came to parties they had with their schoolmates any more than they do parties they go to now as adults. We had separate family birthday teas.

Amorica · 25/09/2026 16:15

He sounds like a bit of a nightmare since he agreed to it in advance and now wants to dictate.

If telling him he isn't invited will work YANBU to do so but will it?

MommaMia26 · 25/09/2026 16:15

ChestnutSquash · 25/09/2026 15:41

You should have booked on your weekend and not told him. Can you cancel?

This is what I’d do in future, especially because it isn’t the first time he’s done this. It was kind of you to invite him (although I think it was a mistake to do it on his weekend even if he agreed and it was the nearest weekend date, he’s clearly a bit of a piss-taker sometimes)

He clearly doesn’t want the effort and expense of organizing it himself. You aren’t stopping his parents or partner and her kids seeing her. They can do something in the evening or organize a nice birthday treat for the day before/afterwards.

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