I have to say that this experience has completely black pilled me and made me unable to trust. I'll provide some context.

I dated this woman for 7 years. We broke up because it just wasn't working anymore, no hard feelings. A month later she calls me trying to get back together, I tell her no. She was pleading to be at least friends with benefits so I caved in, and I booked a hotel for us.

We had sex, and afterwards we were sitting on the bed to watch some TV. Mind you at this point I no longer have romantic feelings for her. She is texting someone, I ask who and she says that it's her new boyfriend.

I was completely flabbergasted. I really thought that I knew her, and that she was a good girl, but here she is getting her back blown out when she has a new man. Admittedly, I shouldn't have done this, but I let curiosity get the best of me. When she went to shower I looked through her text messages and it made me feel sick to my stomach.

This guy has been basically worshipping her, telling her she's beautiful 1000 times and on top of that has been paying for her school, gas, and groceries. Mind you they've been dating for 1 and a half months. He sends these long paragraph texts to which she always replies with a few words. He had been trying to get in contact with her for hours, and what was her reasoning? That she was hanging out with friends and couldn't find an outlet to charge her phone. She even sent him a selfie snap right after I banged her, and he has no idea.

The fact that she was able to so nonchalantly lie to him like it was nothing sent shivers down my spine. Especially because I was with her for so long and never thought that she was this type of person. This has given me trust issues that I've never had before. To top it off, we had sex three more times throughout the night during which she complained that his dick isn't as big as mine.

I know it's not fair to base my feelings off one person, but this gives me major trust issues. You would think you know someone after 7 years, but she only just now revealed her true colors to me.

I know that I should tell the new boyfriend, and that it would be the moral thing to do. However, I'm single right now and I'm not going to pass up on commitment free sex, because she'll just end up giving it to someone else, so it might as well be me.