sounds like she moved on and is keeping you as the backburner backup...
want advice, as hard as it is, move on.
The first is always the worst, you think you can't live w/o em and all that sh*t, untill you eventually realize you did before, so why the hell can't you now...
Hang out with your friends, meet new girls, and you will realize others are better.
Don't think about it and don't worry about it. If she wants to do her own thing, then why shouldn't you...
Just curious and it has been asked before, how old are you?