Feelings are feelings man you know? Who cares if you weren't dating it still hurts. I know what your saying you obviously like this girl and would wanna date her. for whatever reason you're not. Since you weren't dating, take her out to lunch, and you should tell her how you felt about what happened and ask her whats up, you know if she wants to have a relationship or if she just isn't feeling anything serious. If she does wanna date great if not its just one of those ladies you need to move on from. You don't want to have to deal with liking a girl, acting like you date when you're together, but when you're apart she can hook up with other guys. It'll eat you alive. I hope shit gets better bro. It will.