Getting back with Ex's

[Tanach]

So I broke up w/me gf of 3 years about 3 months ago mostly because I thought I was unhappy in the relationship and she was very clingy/needy. It was tough to do but I thought it was best at the time.

Recently however, I've found myself thinking more and more about her and her good qualities. When we broke up, she promised things would be different, but I didn't budge...now I'm wondering if that was the best course.

If I get back together with her, is the same thing bound to happen? Or have any of you done this and it worked out?

No, TTINWWOP, and yeah, I SIIHP, and thanks for the help.

~jack