My girlfriend and I just broke up after 3 years of being in a relationship. The reason why we broke up is because she met a guy at the club about a year and a half ago. She’s had just started being stripper, I had no problems with that because I was taking her there and picking her up every night, even sometimes going into the club to throw some money. A couple months down the line. I find out she had sex with the guy behind my back. We have a fight and we are apart for about a week and then I forgave her. Months down the line, she stopped working at the clubs Nd hasn’t had a job since. I’ve been working full time and recently got enough to move us into an apartment of our own. I find us a new apartment and we move in. About a month into us moving in and I find out she’s still having sex with the same guy. This time, I tell her that I don’t think I can be with her anymore because it seems like she’s just going to continue to cheat on me with this same guy. She tells me she doesn’t have feelings for him and it’s only transactional but this has apparently been going on for almost a year. She tells me I’m selfish and that I don’t understand her perspective. Am I?