Is AUTHOR wrong in the post ? POST : This girl and I have been in a serious relationship for a couple of months now. We’ve been pretty open about our past relationships and we both have said in the past that honesty between partners are important. 

When we were starting out this was the story I knew. She had a boyfriend (guy A) for three years, she found out that the guy was cheating so she broke up with him. They were just starting a long distance relationship (she was assigned in another country) back then. A few months into her new job, and a few weeks after they broke up, she started a relationship with co-worker (guy B). This was brief, lasting just a couple of months. She said she didn’t feel an investment from Guy B’s part, and she felt she still loved Guy A, so she broke up with the Guy B, and eventually got back with her Guy A. They lasted another three years, Guy A even proposed. After a year of being engaged she felt that the guy wasn’t really committed so she returned the ring and they weren’t the same ever since. They finally broke up for good, a month after she met me and we started dating. 

A few days ago I learned that she actually cheated Guy A. After breaking up with Guy B and getting back into a relationship with Guy A, she did break things off with Guy B but they continued having sex afterwards. She did this for three years and stopped only after Guy A proposed. She said she did it because she was really hurt by what Guy A did, and it was sort of getting back at him. She said she didn’t have any strong feelings for Guy B, and she wasn’t even sexually satisfied with him (at least that’s what she said to me). 

I can’t understand her side. I wanted to know why she did those things. She’s telling me that this was in the past, and she was stupid back then. I believe her, she’s a nice girl, and in all fairness to her she’s the one that brought the thing up and confessed everything. 

Now I told her that I’d reassess our relationship. I starting to get more details about her relationship with guy B since I need to understand and empathize with her. I’m a guy big on fidelity, I’ve said to her in the past that I’d never would have given Guy A a chance back then. Now I’m thinking of ending things with her. 

AITA here when I wasn’t the one she cheated on?