<human>: Can you give me the gist of the text in a nutshell?

Me and my ex have been together for 2 years. We were each other's first everything. We lost our virginities to each other, we've planned to go away to college and even settle down. She really is someone I'm completely in love with. We broke up last week because lately we've both been having issues and haven't been able to agree or settle disputes as easy as before. We had a huge fight which I basically walked away in a fit of rage after she yelled "its over". From then on I plunged into a mini depression and she did to. So much so that she got drunk and at 4 am invited a guy over to her brothers house to vent. She was naive and stupid and ended up fucking him. 2 days later she admits to me that it made her realize how badly she had fucked up because she couldn't stop crying while she did it because she kept thinking of me. Now she wants me back and I don't know what to do. This is her only sexual relationship without me and it was a drunken 1 night stand because she didn't expect to get back together. Any suggestions or prior experience welcomed
<bot>: me and my ex shared our virginities, we had a huge fight and broke up, she had a one night stand and completely sobbed throughout it and realized she only wanted me. Help