Separation, Hindrance, and a indecisive heart. HELP?

I've known her as long as I can remember. We never were really that close until two years ago when we attended the same classes for that year. The year after was the worst. I hurt her feelings and greatly hindered our relationship. This year is the last year were we can see each other for a while. A couple years ago I lusted for her but now, I feel like I really love her. I've already apologized for my damage. It's amazing how she still talked to me even after the incident so i know she has some feelings for me. Currently we just ask each other what's going. She has a boyfriend but I don't really feel like he loves her. What should I do?????