[MicroBob]

break-ups and heart-break suck and definitely are problems.
Work on yourself as best you can...time healds all wounds....blah blah blah.
It doesn't sound like much help now of course. But things do get better. They just take time. Also, a good rebound or three might be a fun idea too.

You are definitely better off without this girl and need to remind yourself of that when you are feeling down about it. She is not capable of handling a relationship right now and the two of you have already established some really unhealthy patterns where she would be unlikely to change all this lousy stuff if she stayed with you.

So learn from the mistakes of this and you now know a bit better what you want and that you deserve to be treated better and proceed with your life from there.