Can't say I agree at all about the last post.
I know you feel like you were the fault and the **** up, and yes, you were overbearing at times. And the longer the relationship went on and the fact that she still wanted to end things, the longer the impression you made on her that you weren't going to change.
She has alot of growing up to do too. Her priority is going out and having fun with her friends because this is her last year to do so. I had this mentality and even took it to the extreme when I stayed an extra year. All I did was just delay the inevitable, and that was me growing up. Looking back on it, I realized how short sighted that attitude is. Being outside of college, there is still a whole wide world and lots of good things to do. And there is so much more life after college as well. I dreaded it because it's "Oh get a job and settle down." But it's not. It's an opportunity to have a structured life style and have the money necessary to do bigger and better things.
You can try to tell her and teach her things, you can try to show her that you changed, but it's only if she wants to. You can't keep chasing after her and trying to throw into her face that you changed because that does not show her you changed a tiny bit. She is going to feel how she feels and there isn't anything you can do to change her mind or make her want to come to you. She has to want to yourself.
It's a typical guy ****ed up situation. And you are taking the lessons and applying them to your life, are you not? You grew and gained so much from this, even if it's an empty victory to not have her to share it with. Let her be, and in the tiniest possibility she might come by to give you a second look down the road. I'm saying this being a guy that took an ex for granted and it is a tough pill to swallow knowing that you are an already proven **** up in their mind and that you are going to lose out to any guy that comes along without that bad history. If she runs into a string of assholes maybe you will look better in comparison. Not likely though. Don't get attached to any hope that you are trying to find, it's going to drive you nuts.
You think a couple weeks apart is rough? I'm on four months no contact and I still think about her, dream about her, everyday. What can you do though?
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.