Way back in September, we briefly met fbil's girlfriend for a couple of minutes (not exaggerating). She left the party all mad and dramatic, didn't even say bye to anyone, and we haven't seen or heard of her since.
Fbil has been treating me really badly for the last year, and blaming me for something that was not my fault at all. So our relationship went down the drain, big time. He doesn't even speak to me except to provide the shortest answers ever when I ask him something.
So that's the background info. Now... the current issue...
We're having a very intimate engagement party, and we have strict limitations due to the restaurant's small size. Fh has already invited his share of people, as have both our parents. Because of the small restaurant and our desire to keep it as intimate as possible (we're footing the bill, which is another factor). I have yet to invite my own personal friends (I only have 3 that I'm inviting).
The problem is this: all of a sudden fbil wants to bring this chick that we met once, wayyyy back in September and haven't met since. And to do that, I'd have to not invite one of my good friends (sicne I'm the only one that hasn't invited anyone yet, and it's rude to uninvite people). I've been friends with this person for almost my entire life, and he's been there through thick and thin.
I feel like cutting him for fbil's gf that we don't even know isn't fair, and with the way he's been treating me, I definitely don't feel like doing him any favours. Fh is annoyed with me because he feels like since his brother is important to him, it shouldn't even be an issue.
Any advice?