I genuinely want everyone in my massive Catholic family there - except one cousin. I have like 50 of them that I'm going to invite, but there's a set of twins a few years older than me and one of them SUCKS. 

Shit-Twin has always been a nasty piece of work, irritating as hell, and the kind of person I despise. Rating girls on a scale of one to ten (out loud, in front of them), treating his girlfriend like shit at family events (she dumped him after he asked for her dad's blessing in marriage 3 times and the dad said no, and then Shit-Twin was very vocal about how unfair that was), anger issues - like, real bad. He's really negative, we have nothing in common, and I hate being around him. 

I have made it very clear to my parents that I don't want him at my wedding, nor do I particularly want him in my life. My mother in particular is APPALLED at the suggestion that I would invite literally every other person in my family, and not him. It wouldn't be quite as awful, but his twin sister is cool and so I want to invite her and her wife, and apparently that would be too cruel to Shit-Twin, as well as Shit-Twin's mother, who is chronically embarrassed that her kid has grown up to be such a garbage human. 

With so many people at the wedding, it's entirely possible I wouldn't even realize he was there. And he probably wouldn't talk to me anyway (or maybe even show up) because we really do hate each other. At least, that's what my mom and her siblings think. The general consensus among the rest of my family is that I'm singling him out in order to embarrass him, although I mostly just don't want to deal with that headache.

AITA? 