Anonymous wrote:OP here. I guess because he was single so long before us, this crew IS his family. I'll try to stick it out, but don't know how long I will play 2nd string to some over the hill party people. I just think kids or no kids, there's a time to grow up.
OP, my issue wouldn't be with who this guy has chosen to be his family. My issue would be with his apparent failure/refusal to integrate the life he's establishing now with his other life. He does not have to be at every function. It doesn't matter if he's "understanding" that you can't be there. I would be miffed that he would not choose to stay with you, on his own, even if he was clearly making an effort.
I am divorced, and my ex (who is still a friend) has had this problem with 2 different women now. The last one was great, but so settled in her own life (late 30s/early 40s, with friends, family, activities, etc.) that she resented any attempt to integrate. If he had a kid thing at a time when she wanted to do an adult thing, she'd push back on it and they'd end up in a fight. I do not have these issues with my sweetie, who happily integrated as soon as I allowed him to, but watching it from afar has been really frustrating, so I feel your pain.