What did I do wrong

[Sharpasknives]

Tonight I am having a bbq , and my partner and his boy were staying over. Partners boy and mine get on, my youngest is away , so my boy asked if a friend could come and stop over. I said yeah no problem, but friend would be in floor as partners boy had my youngests room. Last night, partner came over and I told him xxx was staying too. He went mental, saying it wasn't fair on his child. Now all 3 boys know each other., and I can't see what the problem is. He says his child will be left out. Now they are not toddlers, so should have no problem getting on.
At the end of the day, it's my house, so if my son wants a friend over that should be fine. He was very cold last night , which resulted in me getting upset, and he left the house at 5 this morning , saying they weren't going to stop tonight. Am I not seeing something here?

How long have you been together?

4 years

I suggest you dont make it 5. He sounds like an idiot.

Weird over reaction if there are going to be plenty of other kids there. Would understand it if there had just been the two of them, unless there has been previous form of his kid feeling left out.

Leaving in a strop at 5 is very weird.

His son is now bringing a friend .

Haven't you posted about this guy before?

Run.

We will see you on here next time with the next non-problem this bloke throws at you.

It sounds like there could be some projection going on with your DP - perhaps he remembers feeling left out of a group of three in his childhood, and has projected those fears and feelings onto his own DS, subconsciously.

He's massively overreacted though, and in circumstances where there are loads of other people coming who his DS knows, he's being totally illogical and unreasonable about it.

Yes winkywinola :(

Oops yes star