Is this trouble?

[SureNoProb]

Im sure this is a very common thing on here so Ill make this brief. I broke a long term relationship an shortly afterward became involved with a girl whom I had much more in common with. We started off very fast and within a short period of time she basicly moved in. We had some arguments of her still contacting her X but nothing much other than that. Out of the blue one night she broke it off with me. I felt like she was trying to provoke a fight that night and obviously thought about doing this for some time before. I know alot of people say that they were a good boyfriend, but I really was. Never thought of cheating, put her ahaed of my friends, and constantly did romantic things for her (flowers, cards, dates, dinner, ext..). From that night on its almost like she changed over night. Like she completely forget who I was and even tryed to make herself out to be the victim. That was about 6 months ago. Now shes starting to send me messages and Im not sure what to think. Should I let this person who hurt me so much in the past come back into my life? When I asked what her intentions were she said that she just wanted us to be "cool" and be able to talk. However, this is a far stretch from the person who tryed so hard at one point to just up and leave. I know she has dated but nothing serious by the way. Now I do have to note that this person is not the most mature person and has a reputation of being a very emotional person. I would love nothihg more than to rebuild our friendship, but she wont talk about anything that has happend and has made no attempt to actually meet. For me, I dont want to be in the friendzone nor do I think being friends will work when we start seeing other people. To me, if we cant fix what went wrong in the first place than Im setting myself up for desaster. She stated she wants to start over with me and Im not even sure what that means. Its almost like she knows she was in the wrong in reagrds to how she handled the split but is just to stubburn to actually say I messed up. If she was such a victim than why come back. Maybe the grass wasnt as green elsewhere? Is this a game that Im just falling for or should I take note of the fact that she contacted me which shows something? How do these things typically end? Very confused....