So I(25M) met a girl(25F) while I was working far from home. She was on a trip and fate wanted our roads to cross(the way I got to know her was so cinematic). I got her number and so and we started talking.
Fast forwards, me and her were talking 24/7 for two weeks and we really clicked with one another. It was like a match in heaven. We met for the first time after talking for two weeks. Everything went perfectly fine. There was no intimacy but we really got connected emotionally.
The next day she tells me that she didn’t feel that we would make a good relationship and she asked me to respect her decision. I was confused as why she said what she said(she didn’t even show a sign that she didn’t feel any connection between us). She still wanted for us to stay friends though.
I accepted to be friends with her but not going to lie, I still had some kinda feelings for her, although I made sure to never pass the boundaries. (After some time I told her that I saw her as a friend 100% but that was a mistake because I didn’t see her like that).
Fast forwards in time, she would still talk to me 24/7 and sometimes would also flirt a bit. I was confused but also hopeful that I could have a chance with her. We met some time during the days and the vibe was so wholesome and good. One day she out of nowhere called me and said we have to meet. She seemed distressed. So I drove to her place and picked her up. She cried and told me that she lied about not feeling a connection with me. My heart was pounding so much. I asked her why did she lie but she was hesitant at first and simply kissed me. I was so overwhelmed that I didn’t know what to do. I went with the flow and I had one of the best times of my life with her. The next day I confronted her to tell me the truth as I knew there was more to this. She started crying again and told me that she had a boyfriend of 8 years. I was speechless. My chest was kind of hurting and I told her that I have to take some clean air to think. She said she wanted me and not him at that moment.
Now here is the moment IFU. My mind told me do not engage with this girl anymore but the time I passed with her was something else, I thought I had a chance of being with her. A chance that she would break up with her boyfriend(she told me she had some years that their relationship was shitty and yes I know, why cheat if not happy, right? Well she told me it was very much complicated for her to separate and for a moment I trusted her). So time passed and I continued with her to be intimate and basically have a relationship(she still was with her boyfriend). I continued to do this for quite a while until I decided that this is so disrespectful to me and to her boyfriend. I felt like shit because he didn’t deserve any of it. She begged me to stay. I didn’t comply with her request. She also told me that if I ever loved her I wouldn’t tell a thing to her boyfriend about this. I asked her why don’t you really break up? She said even though they didn’t have any good times anymore, she still loved him. I decided to not say any word to her boyfriend because 1. I don’t want to interfere with any of her business right now and 2. I am embarrassed with myself. He deserves to know the truth and not live a complete lie.
TL;DR: TIFU by having an affair with a girl who already had a boyfriend and I knew about it.