I don't think people here will understand because most of the nerds here have no experience with relationships.
I'm kinda in the same situation that you are. Broke up with this girl a few months back cause she had too much luggage and there were things about her that really bothered me. We didn't go out for that long, but we got too serious too quick. Anyways we broke up for about 5 months then got back together but not as serious. But I knew in the back of my mind I didn't wanna go through this again. We broke up last week and I swear it's painful. Don't know if I'm hurt more when I'm with her or without her.
So anyways....sorry no advice from me.

But good luck!