To expect the same from my ex?

[Afamat]

First time poster here so apologies if I go on a little rant. Just desperate for advice from people who are outside of the situation please.
Ex and I split as I met somebody else. We have a 5 year old LG. He demanded alot of rules etc at the start with regards to our LG and I had no issue with going with them as she is my priority and they are in her best interest.
AIBU to expect him now we are 5 months down the line to abide by the same rules I have been abiding by all this time?
Long story short, he didn't want our LG meeting or knowing of my bf for 6 months. I agree with this and to be honest I don't think 6 months is gonna be long enough for her to have to get her little head round things so will wait longer until I think she is ready.
Have just found out he's out tomorrow on a date with another parent from school and that they have been meeting for "play dates" with the kids. The kids arnt friends (the other kid has bullied my LG) so I know it's the parents wanting to meet up and not the kids.
So basically AIBU to be majorly pissed off that he has introduced our dd to this person who he has been spending time with for a few weeks under the pretense of "play dates" who he is now publicly dating?
Any advice would be most welcome please!

I’m possibly massively projecting but your ex is an ex is a reason. Expecting any kind of courtesy regarding new partners is pretty naive.

Also you sound like a pretty reasonable and responsible person regarding your child. You don’t need your ex laying down the law about your new partner meeting your child. Sounds like you were perfectly sensible. Don’t let him dictate his terms again. Stand up for yourself.

BTW my ex has never met my current partner and didn’t get to dictate when partner met our children. None of his business. I haven’t and won’t be telling him when he can and can not introduce them to any poor foolish woman who decides to date him.

Thanks. Up until now it's been mostly pretty good between us. We share custody so see eachother a few times a week. Also spend time together with dd at the park etc. Bloody hell we even spent Xmas all together with my family.
U r right though, I shouldn't have let him dictate everything from the start then wouldn't be in this position. He obs thinks its OK to introduce dd after a couple of weeks, I still don't after almost 5 months. Tbh I was warned it would all change when he got a gf. Just praying my dd doesn't get hurt by it and bullied more by this kid. He does know this other LG wasn't nice to our dd but is still willing to make them spend time together so he can see the mum. Bloody nightmare. Anyway thank u for the response. X

He sounds like a selfish bellend, meant to say before. I hope your little girl doesn’t have any more problems with the other child.

Think I will be having a little chat with her tonight about standing up for herself. If she's gonna be forced to spend time with this child then she's gonna have to learn.

You cheated on your ex and he rightly didn’t want your DD to meet the OM. He was probably hurt and angry and I would imagine you did what he wanted out of guilt. Mind you if you don’t know 5 months in if you want your DP to meet your DD you have probably reservations about him rather than her. I think your ex was fair enough with his request initially but getting to know someone 5 months after your partner cheated I think is fine and if they were play dates and not actual dates it’s fine. I think you liked having your little family and your DP and you are probably more concerned that you won’t be able to have your cake and eat it anymore.

Everything geekone said.

Have no issues with dd meeting my bf, we are solid and he's a great guy. I'm waiting until I feel she is ready as she has obs been through alot of changes recently and I don't feel that another change of having somebody else introduced into her life is appropriate at the min. Also have zero issues with ex dating somebody else at all, we get on good and I want him to be happy. Just don't think it's on to expect me to wait 6 months (even if I wanted to do it earlier than I do) before introducing a new partner and only when he's met him but for him to introduce somebody he is dating to dd after a couple of weeks esp as he knows that the gf dd has still been bullying our dd at school but has been forcing them to spend time together.
I suppose I maybe just need to take a step back and as another poster said don't let him dictate everything and let him get on with it. Know lots of people who introduce new partners really quickly and it's worked fine, just hope he doesn't make it a revolving door of new partners introduced to dd then out of her life because he hasn't got to know them properly first. Suppose u can't put a timeline on that though. Thanks for the reply.