Girlfriend problems - Help! Is she totally wrong? Should we talk in person tonight?

I had cheated on my ex-girlfriend Meri twice with a girl, but never had sex with the girl. Then my ex-girlfriend Meri broke up with me about 2 months ago and f***** a guy and gave at least one other guy head. She had gotten me back for cheating on her and hurting her by breaking my heart, hurting me, crushing me, and breaking up with me. My ex Meri and I saw each other, single, afterwards. My ex Meri ended up becoming my girlfriend again a few days ago. She said she'd never break up with me unless I cheat on her again, and I told her "I'm not going to control you". That girl I had cheated on Meri with had my mp3 player. I went to that girl's house to get my mp3 player and she was with her male f***-buddy the whole time, I only hung out a few hours with them, and dropped them at the train station at like 6:30pm. I did not cheat on my girlfriend Meri. So, My girlfriend Meri breaks up with me and ditches me for the whole weekend just because I went to the girl's house to get my mp3 player and hung out with her and her male f***-buddy for a few hours. I told my friend about all this and they said that Meri was totally wrong and immature and that she is just doing this to get a rise out of me and another friend said that What she's done shows that she doesn't care about me or shows how much I matter to her, and they mentioned how she broke up with me, over an mp3 player! I love my girlfriend and we are soulmates and meant to be together. She had already gotten me back for cheating on her and hurting her by breaking my heart, hurting me, crushing me, and breaking up with me once. I've had my cock deep in only one pussy besides hers and she's had only one dick besides mine deep in her pussy, so we're even. She had gotten me back. Then, this weekend she breaks up with me, breaks my heart, hurts me, and crushes me. Make me so sad, after she had said she'd never break up with me unless I cheated on her, which I didn't. After I have been so nice to her and good to her and did things for her and been loyal and faithful and not cheated on her. I've spent almost all my money on her, been taking her out, been nice to her, gave her massages and orgasms, been good to her, treated her well and bought her things like flowers and candy. And I have been faithful and loyal to her and not cheated on her. And she made a POF personals ad, which she's hooked up with guys immediately from before. I've been so sad today and crying a lot. I love my girlfriend and we are soulmates and meant to be together. I just want to see her and start and build a good adult mature relationship and be the best boyfriend to her and have her be the best girlfriend to me. Is my ex-girlfriend Meri totally wrong for breaking up with me this time, ditching me all weekend, and hurting me, crushing me, and breaking my heart? Is she totally wrong? And should we talk in person tonight? I intend on marrying this girl. She means the world to me. She is the one for me. A: IS SHE TOTALLY WRONG? B: SHOULD WE TALK IN PERSON TONIGHT?

No, you're in the wrong. You should NOT have hung out with the girl you cheated on her with for any amount of time. YOU did something stupid and YOU should deal with the consequences of your actions. If she hung out with the guy she slept with, how would you feel? At least she had the decency to break up with you before sleeping with someone, you didn't even respect her enough before deciding to sleep around. Good for her for leaving you, you clearly can't be trusted.