Eh i've been there, I had this girl for 4 years, and then all of a sudden boom out of the blue we break up. it took me nearly 7-8 months to get over her. Of course we stay friends, and then this February she decides we should get back together again. Me being the gullible type, i said hell why not, so we're back, and then two weeks ago she decides again we should break up. This time i say **** it and stopped talking to her, even tho i still think about her occasionaly. It sucks.
Now that isn't easy on a man's heart i'll tell you that, so out of all my incessant rambling, i say be careful. Don't be swayed by her again and then get broken again.