PLEASE HELP!!! Ex girlfriend?

We are both 20 and went to school with each other. last year we ended up dating for 10 months. we split last november because she moved away. A few problems: she would never reply to my txts (or if she did it was days later). She never answered her phone. (even if it was right next to her she wouldnt answer because she was eg watching a movie, or something else that really didnt matter). And during the whole relationship I needed a supportve girlfriend to talk to after a hard days work or a bad day. and I knew that I couldnt call her because it would only get me more angry (not having anyone to talk to). Also she used to ALWAYS go off and do her own thing without telling me what shes doing. (if I went to toilet at the shopping centre she would wonder off and I would have to look for her.) another problem was she had commitment issues. never wanted to get married or have kids. so there was never going to be any long term security or stability in the relationship. Anyway even though I know deep down in my heart its not going be a good choice to date her again because things wont change and we have already discussed we arent getting back together. but part of me wants to be with her, part of me still loves her and part of me misses the times we had. What do I do? Have you ever loved someone that you werent meant to be with? How do you get over someone when your drawn between two different sides?