Weird vibes from friends

I'm in this club at my uni and it seemed great at first. I like what we do and it's my passion. Here's the thing: I've always had this weird vibe about some of the ppl in the club. Like we do all these bonding events, which are fun, but sometimes I feel invisible. A lot of them are in different sororities, so maybe it's that commonality? It's weird like I'll try to say something and they'll either just stare like I spoke a different language or talk over me as if I'm not there. It used to really drive me crazy and I started to dread being there. It's gotten better as ppl graduated and stuff, but it's still a select group of people that i feel odd around. I don't think it's me, because in every other club, people seem to enjoy talking to me.

I got dinner with a bunch of them tonight, and i swear they were all asking each other about summer plans, EXCEPT ME. I sat in the corner and barely said anything at all. I responded to other ppl's stories, but never was asked anything. I really felt like i was invisible. I don't know if this is crazy or what. I'm going to stay in the club because im not going to give up what i love, but I don't want to feel like an outsider anymore.