Thanks so much for replying so quickly! I will definitely be sure to get in touch with the right people and ask them. I didn't think I had to say anything, because I'm sure they don't expect everyone to accept, but I wanted to make sure I wasn't being rude!
And yes, I definitely understand that. I did talk about wanting to study abroad, which is what I know a lot of sisters in each sorority do, but I'm afraid that might have hurt me in the long run. The other semester would be an internship that would require me to be out of state, but I didn't say anything about that because I thought it wouldn't help. I guess I'll never know why specifically I wasn't invited back, but that's okay... it just wasn't meant to happen right now, I guess.