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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?

266 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:
dingbat5 · 25/09/2026 18:21

It must be a very tiny hall if the capacity is less than, what 20 people? In any case I can see why it would cause ructions to have your mum there but tell the other grandparents they’re not welcome. The GF and her dc I get, because they are younger and your dd should have the friends she wants there not hangers on of her dads family.

Its really unfair when the wants of adults put kids in a position like this. I wouldn’t cancel but I would compromise as much as possible just to keep the peace for your daughter. If he really won’t budge then just tell him not to bother coming at all.

AmazonAntiqueStore · 25/09/2026 18:19

Newyearawaits · 25/09/2026 17:01

Missing the point entirely. It's his daughter's birthday party and all the people I know have had both parents at a birthday party, very much the norm.

Parents, maybe, but not grandparents and the rest of the hangers-on he wants to bring.

if it was just the father wanting to come then I doubt OP would have started this thread.

LlynTegid · 25/09/2026 18:14

Hall maximum capacity is for a reason.

Say no and have a separate celebration.

Bellyblueboy · 25/09/2026 18:10

Would a compromise work - grandparents there, and just both parents. No girlfriends/boyfriends and no extra children?

That’s five adults - you can’t accommodate any more and his girlfriends children are too young for the party: they can see the birthday girl afterwards

WyrdHag · 25/09/2026 18:09

What an absolute bell-end your ex is.

Can you email the people you're hiring from and ask them to confirm the number limit for fire regs - then send it to him and say 'look, legally you can't come' we will need to go ahead as planned?

I'm sorry there's no easier way to fix this, I had similar aggro with my Ex turning up with uninvited family guests to DDs 21st birthday last year - difference was they just gatecrashed with no warning!

Canitrustagain · 25/09/2026 18:05

Wannabemornighmum · 25/09/2026 15:47

Ps his parents are her GPs too and he’s her dad, he has every right to want to be part of a birthday, roles reversed and people would be going nuts!!

She’s 10 and it’s her party - she wants her mum, her friends, and her cousin. She doesn’t want step siblings and her grandparents. My grandparents were never at my birthday parties. My friends never had grandparents at theirs! Her dad can arrange something the next day instead of making his daughter’s party all about him.

kittensinthekitchen · 25/09/2026 18:03

Unless you've booked a party in an elevator, the hall being "too small" is bollocks.

Bridgertonisbest · 25/09/2026 17:58

Ffs, you’ve booked and paid for the party so you can have who you want he can invite his parents, his girlfriend and her children to a party he’s paid for.

Can the girl not have a party with her friends and not dads girlfriends kids??

BobLemon · 25/09/2026 17:57

If you need help, ask him to help instead of a random friend.

As others have said, you shouldn’t have organised it on his weekend. Your DD wants a party on her Dad’s weekend? Great, her dad can organise it.

and as others have said - don’t make a big deal of it. Whatever happens on the day happens. It’s exposing her to the tussle pre the event that is likely more unpleasant than whatever will occur.

HappySummerFun · 25/09/2026 17:45

Shame it's not a boys' trampolining party. If it was, I'd say come along if you must but don't come crying to me when the younger kids are annihilated.

notwhingingjuststatingfacts · 25/09/2026 17:44

tripleginandtonic · 25/09/2026 16:58

This. You booked it on his weekend without his agreement, I can see why he wants to attend.

Try again @tripleginandtonicthis time read what the OP has written! She DID have his agreement before booking it! He changed his mind afterwards!

MyLimeGuide · 25/09/2026 17:36

What a selfish man. I hate men that want to force their new partners kids on their original children's events.

DryadsRest · 25/09/2026 17:35

Nofeckingway · 25/09/2026 17:33

Doesn't he understand that it's not a family party , it's a school party 🎉. And for 10 years olds only . He can have his own family party too for her with grandparents and his current girlfriend's gang .
Why do these men create difficultly for no reason . Must be so annoying. How many more years do you have to put up with this pain in the arse.

Probably not that much longer because if he carries on his daughter won’t want to see him on his weekends anyway!

Nofeckingway · 25/09/2026 17:33

Doesn't he understand that it's not a family party , it's a school party 🎉. And for 10 years olds only . He can have his own family party too for her with grandparents and his current girlfriend's gang .
Why do these men create difficultly for no reason . Must be so annoying. How many more years do you have to put up with this pain in the arse.

Purplebunnie · 25/09/2026 17:33

His parents and him are the only people who could possibly attend (sorry that reads badly, sorry for the iffy grammar). His GF and HER two children can make themselves scarce. This should be the conditions you are discussing.

His mom can also help your mom with the cake

No way should his GF and her two children be attending. It's non-negotiable his GF and her two children do not attend

Fortuity · 25/09/2026 17:26

tripleginandtonic · 25/09/2026 16:58

This. You booked it on his weekend without his agreement, I can see why he wants to attend.

But he did agree. Where does that come from?

waterrat · 25/09/2026 17:25

Would he be reasonable if you told him this is a 'girls' meet up? ie. as others have said, equivaqlent to the girls getting their nails done or going for a pizza? he is thinking of it as a family party which it isn't.

would his grandparents help make this clear iif you approached them?

Fortuity · 25/09/2026 17:25

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.

Why would that bother her, given that she knows it's her dad who is trying to mess it all up?

SandyHappyPerson · 25/09/2026 17:22

alcovecupboards · 25/09/2026 17:08

You shouldn't have booked a party on his weekend. You're actually outrageous for that and if he had done it you would be getting very different responses. I don't see why you can't just avoid the drama and allow his parents to attend for your daughter?

You're actually outrageous for that and if he had done it you would be getting very different responses.

I'm all for seeing things from the other way around, but I actually think you're wrong about that, she asked him first is it was okay, then he could have her after the party like normal, and he agreed, that was his chance to say if you do that we're all turning up too! He's let her organise everything then he's trying to shoe horn other children in at the last minute, even AFTER his daughter has told it she doesn't want that, he is now forcing it with OP instead and sounds like he would turn up no matter what his daughters preference is for her own party.

I'd like to think if it was the other way around, OP would be planning something special for just her and her DD for after the party instead, it's what I would do.. rather than try and insert herself and her family into his plans just because her DDs birthday happen to fall on one of her contact days.

Why he would want to crash a 2 hour party for 10 year olds girls I have no idea, saves him having to do anything nice with her afterwards maybe? Or seeing it as an opportunity for his girlfriends kids to be entertained for two hours for free. Either way he is being an entitled arsehole to upset his daughter over it.

DryadsRest · 25/09/2026 17:20

MrsVBS · 25/09/2026 17:19

Stop letting him dictate everything to you, you’ve arranged it/paid for it etc, be firm and tell him he can come on his own or pick your daughter up after and take her out with his parents and girlfriend. Stop letting him call the shots and say that you’re not talking about it anymore. And next time book it on your weekend!

Sounds like from the op posts that he might well agree to come alone then turn up with his gf etc

MrsVBS · 25/09/2026 17:19

Stop letting him dictate everything to you, you’ve arranged it/paid for it etc, be firm and tell him he can come on his own or pick your daughter up after and take her out with his parents and girlfriend. Stop letting him call the shots and say that you’re not talking about it anymore. And next time book it on your weekend!

Itsthewoluff · 25/09/2026 17:18

Tell him if he’s coming you won’t need your mum to go and help as he can instead. Or he doesn’t come at all and your mum helps.
His choice. But all the extras are not an option.

DryadsRest · 25/09/2026 17:14

The thing is ex p is framing it as a family party for children that has excluded his family and his gf little ones - when it is not a family party and he was consulted beforehand and agreed with what his daughter originally wanted

Onegiantpupil · 25/09/2026 17:14

What about suggesting he just brings his mum but with the caveat that she is coming to help and give her jobs to do

Make it clear your mum is there to help so if he insists on making it tit for tat then that’s the compromise.

It is her party and she is 10 so I totally get she wants the day about her and not her quite young siblings or wider relatives.

Would an extra 2 people, ex and his mum work with the numbers?

BeKhakiReader · 25/09/2026 17:13

I’m afraid you can’t book something on what is technically his weekend and then not allow him and his parents to come (I think you do have an argument against the gf and her kids.)

I think you’ll have to suck it up for your daughter’s sake and make plans on your weekend next year.

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