My girlfriend broke up with me because we were fighting a lot, what are the chances of getting back together?

hmghmg
We were together for about 9 months, me 31 and she's 29. We had a good first 5-6 months, the start was great... we were together almost everyday...At about 6 months of the relationship she asked if I was interested in moving in with her, and I gave her a terrible answer. I was very busy studying for my boards, had an exam coming up in three weeks and wasn't thinking about anything else, and I told her "I don't know, this is good now, we're having fun, maybe we should talk about it later after exams". She burst into tears and after that she tried to find a reason to break up with me. We started fighting a lot... We had a huge fight 3 weeks after that talk and she decided to break up with me, at which point I realized that I loved her and I tried to get her back... I sent her many letters, bought her a ring as a gift (not a marriage ring, but a nice $500 diamond ring) and told her how much I loved her and I wanted a future with her... she got back together with me after a few weeks... Than everything seemed to be fine for about 2 months at which point we started to argue on little things again... after 3-4 days of fighting, I received an email message from her saying that she wanted to break up with me for good and that our characters clash and we were not good as a couple... I totally lost it... I don't remember being this much depressed in my life, I was drunk for two weeks...

We kept in touch, and I asked her to get back to me many times. we did get together several times as friends, but almost every time it ended up me asking her to get back together with me with teary eyes.we kind of got emotionally and physically close several times, but there was not even kissing involved and she immediately tried to shut it after a couple minutes of hugging I couldn't believe a woman could have turned me into this much of an emotional person, I had no control over myself... I almost begged her many times... she said every time that she doesn't see us getting back together...

She went on match and started dating people for the past 6 weeks, but she hasn't really found anyone yet... I just saw her new posting on craigslist yesterday...

we talk once in every couple days, either online, or text messaging, and get together once a week maybe as friends, I just tried to stay friends with her with the hope of not loosing her for good...

i chatted with her online today and asked her if she wanted to do something in weekend, and she said "I'm working, trying to spend time with my niece,and trying to date at the same time, and I want to go visit family in cape code in the weekend, if I don't go to cape on saturday, maybe we can get together. I know you want to hangout but being friends doesn't mean seeing each others 3x a week".

I'm just telling you all these details so you can get an idea of what level of contact we are at...

now, my question is what are the chances that she would ever want me back as a lover again? am I being stupid?
My girlfriend broke up with me because we were fighting a lot, what are the chances of getting back together?
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