Girl I'm seeing slept with someone elseWatch
Fast forward to two nights ago, my flatmates and I were going out (including her) and she ended up having sex with another guy who lives upstairs from my flat. I was very angry and heartbroken which led me to throw all her stuff out my room . When she came home she started begging and crying about how she's never wanted anyone as much as she wants me. In my drunken state I took her back and agreed on being exclusive with her. We ended up doing stuff again that night (which I regret now) but now that I'm sober I'm still very hurt about what she did and it kind of turned me off of her. Even though we haven't agreed on being official before she had sex with him it definitely felt like we were more than fwbs and I can't help but feel like she cheated on me and betrayed my trust. I haven't been with anyone else after having sex with her.
I don't know what to do, she's going to be my flatmate next year and to make things worse, the guy she slept with is also coincidentally staying a few floors above us next year. Should I take her back or just try to forget about her?
But, maybe you can reflect too... are you upset? Or perhaps jealous? Or both? Maybe if you were involved in the fun somehow you wouldn't be as upset?