>>1 if it's another love advice thread then maybe you should have put it in the Dating. Problems. Thread.
That aside, I'll try to help you out. Confess. You don't want to always wonder "what if?". Ask her out to a movie or something like that, tell her that you really like her and that you'd like to become more than friends but if she doesn't feel the same way then you'll understand. By the way that she's acting, she might like you back as well.
If she says no it can be for a number of reasons that don't have to do with you personally. Long distance sucks and it's brutal. On top of that she's going into her first year of college which is supposed to be really stressful, a relationship on top of that may even make it harder. She also could be interested in the college experience per se, I don't mean the parties and that kind of thing but meeting new people, people who share her own life goals. I hope that this didn't discourage you, that's not what I meant it to do, I just was considering her possible situation right now as well as yours. Personally I think that you should go for it and confess! I hope that this helps :3