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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:
JustGotToKeepOnKeepingOn · 25/09/2026 15:49

Why on earth did you book it on his weekend? Sadly that was your first mistake. Never do that again. Honestly? I’d cancel. Or move it to another weekend and don’t tell him. He can have DD on her birthday and do what he wants with his family. You have the party that DD wants on another day. Mixing an Ex and his girlfriend’s kids at DDs party is an absolute recipe for disaster. So unfair on your DD.

sittingonabeach · 25/09/2026 15:49

Hoppinggreen · 25/09/2026 15:38

He shouldn't be invited at all, he can see her afterwards as arranged as can anyone else (ie his GF and parents)
Its one great part of having divorced parents, 2 Birthdays
Why are you still letting hm control everything?

It's his weekend though. That muddies the water

SynthWaveX · 25/09/2026 15:47

OhJacintaWhatNow · 25/09/2026 15:42

Why did you book it on his weekend?

Because we have always swapped weekends around for birthdays and things, it didn’t really occur to me that it would be a problem. Her birthday is next Saturday and that was the only date the hall had that worked for us, plus it was the date DD wanted because of the school friends she invited. I did tell him before I booked it and he said that was fine, which is why I’m a bit taken aback by it all now. I wasn’t just booking it behind his back and then telling him he couldn’t see her.

OP posts:
Moreholidaysthanjudithchalmers · 25/09/2026 15:47

He sounds hard work.
It’s a girls party the equivalent of her going out to an activity with them. Can you say she’s wanting friends only and a bit more grown up. If he wants celebrate afterwards with everyone there that’s great but it will really alter dynamics of party if he brings extra people.

MagicUser1 · 25/09/2026 15:47

The problem is that you want him to be reasonable and accmodating, and he is not interested in that. So yo uhave to do what is best for DD and tell him that no, he can't have all these people and that you have booked and paid for a party that is JUSt about DD and her friends and that if he wants to do a family party he is very welcome.... and then acept that yes, he will be unhappy and will give you a hard time.

Next time, definitely plan a friends party on your weekend and say nothing to him at all.

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!!

Wannabemornighmum · 25/09/2026 15:45

He can like things being big family occasions, that’s just a different opinion to you! I agree it’s his weekend you’re going to have to give leeway, none of it is that big a deal, the less drama the better on her birthday

TFImBackIn · 25/09/2026 15:44

No, I'd say he could pick her up from the party and take her to do something with the grandparents then, if he wants. He and his parents can't crash a 10 year old's party!

OhJacintaWhatNow · 25/09/2026 15:42

Why did you book it on his weekend?

donotknowhowtofeel · 25/09/2026 15:41

Just have the party you planned and DD wanted. Let him have his own birthday celebration with your DD afterwards to which he can invite all and sundry. I realized very quickly that no one - not even the child as we often mistakenly think - benefits from trying to do these things 'together' as separated parents. It will just end up causing upset, awkwardness and painful memories.

PrizedPickledPopcorn · 25/09/2026 15:41

Yes, tell him he isn’t invited, and he’s welcome to organise the party next year.

Credittocress · 25/09/2026 15:41

Given you know his form, you never should’ve arranged it on his weekend regardless of his assurances.

ChestnutSquash · 25/09/2026 15:41

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

Hoppinggreen · 25/09/2026 15:38

He shouldn't be invited at all, he can see her afterwards as arranged as can anyone else (ie his GF and parents)
Its one great part of having divorced parents, 2 Birthdays
Why are you still letting hm control everything?

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