Namechanged as this is probably outing to a certain (admittedly small) group of people in real life.
SIL is in process of breaking up with her long term partner. He is still living in their shared rental house but they aren't together. It's probably fair to say that the vast majority of her friends and family have long seen him as an emotional and financial vampire. He, of course, does not agree with this classification.
At Christmas, we had long standing arrangements to go to theirs, which we did. Obviously no one was excited to be spending it with him, but he is still living there and of course, nephew wanted to spend christmas with his dad. Broadly, the day went fine.
DH's birthday this week. No party but we invited his sister and nephew to ours for dinner. ExBIL is absolutely fuming that he was not invited. Feels that we have been disrespectful and he was floored?
It's not weird right? This was a small event for just DH's immediate family and he's not part of that family any more? Happy to be polite and friendly as appropriate when out and about or at theirs, but we don't have to have him round here for everything do we?