<human>: throwaway because she knows my reddit name

Me and this girl dated for a year in high school after talking for a year, and we had a great time. I never thought of her as a potential wife because she didn't try very hard in school and didn't have high aspirations. That being said we had an amazing time together and I love her. She was the first person I was sexually intimate with and meant a lot to me. I meant a lot to her as well and we were very happy.

She is going to community college locally and I'm going to university 8 hours away. I did a shitty job of communicating it but I broke up with her in a much less mutual way than she made it appear at the time. I thought I was going to miss out on opportunities in college if we were together and I didn't want to deal with all the trouble of a long distance relationship. 
Fast forward 4 months. Now she has been involved with another guy, for just "meaningless sex" and we still talk almost as much as we did when we were together. I am doing nowhere near as well as I imagined in school and I don't have many friends and am nowhere close to another relationship. She appears to have moved on. But she has told me she wished we were still together and she still loves me, but here she is sleeping with some other guy, like it's no big deal. 

What should I do moving forward? I no longer live anywhere near her so even for breaks we can't see each other. She also said maybe she would want to get back together if I wanted that. Should i try to repair things with her? Or should I rush a frat or something and try to get things like I imagined they would be in college?

Can you condense the text into a few key points?
<bot>: broke up with girl to have college experience. I am not doing shit in college. She is fucking new dude, idk what to do.