How do I cope with this breakup?

Me and my girlfriend broke up today. We have been together for 9 months and it's the first girl I have ever loved, I loved this girl more than myself. The problem was, the last 2 months have been really shaky. In the beginning I treated her PERFECT. I think she had some previous relationships that made it difficult for her to be with someone like me that treated her as good as I did. She had trust issues coming into it and was kind of angry at times. The first 2 months are when I really fell in love with her but then she started to play games. She never trusted me for no reason and she would push my buttons all the time. she constantly tried to make me jealous and say things to make me self-conscious about myself. I would normally not get that mad because how I felt for her but over time it all built up. Eventually I kinda snapped. I began being very mean back to her. I would say things to hurt her likeshe did to me and I became extremely jealous and untrusting. Only after this did she cool off with trying to make me jealous as much and she tried to make it look like everything was my fault. She doesn't trust me AT ALL, for no reason WHATSOEVER, so when a girl texted me saying whats up today she flipped out. I got mad back at her because their were a couple guys that she had texted and it turned into a big argument and we broke up. she said she is done for good and say's this time is different. she always says were done for good so we will see but is it worth it to try again? She has done so much damage to my trust im not sure it can be repaired but this is going to really hurt if it is done for good because I still love her. what do I do?How do I cope with this breakup?
well first of all let her know how u feel most girls don't understand unless you tell them directly to there face. there's no relationship thats gonna be perfect every relationship is gonna have its ups and downs u jus have work through them if u realy love her like u say u do because love knows no boundaries and if shes doin stuff jus to make u jealous let her know how u feel about that to and if she continues then maybe she realy doesnt wanna be wit u. and also me and my girlfriend go through the little its done for good thing to but it never realy is i usualy jus sit her down comfort her and let her kno how i feel.