What To Do??

My ex exboyfriend and I were together for many months and we had a great relationship, we were very compatible and worked well together. One day he told me that he loved me but had a weird feeling and dumped me. That was in May and it's September now and all through the summer and even now he was so stand off-ish towards me. It's as if he hates me but I don't know why.... Even after both of us have had relationships after we broke up. It's our senior year now and everyday he still parks beside me in the parking lot at school. At least once a week, we have to work almost directly with each other. I say hello to him to be nice and he doesn't say anything. I do want him back but I want his friendship back first. I'd love to ask him nicely why he's acting like this but I'm afraid I'd lose him and I don't know what else to do.... What can I do??

Best thing to do is to ignore him and pretend he does't exist, cause guys don't like girls that are too attached… lay off and if he really values you and likes you, he will pursue you and try to get you back.