So my girlfriend and I are in an open and poly relationship, and she is married. Recently she gave me explicit directions not to be with (in a sexual way) any of my female friends. She said this after noticing they had a thong for me.
she was right but the feeling were mutual between of course my straight best friend and I. One thing led to the other a few nights ago and I had sex with the bff. I thought it nothing more than a lapse in self control and that I would just love with the guilt and keep my mouth shut. However I was my bffs first and she has become very sexually attached. She now sends me sext, nudes, and continuously talks about what next time will be like. I did enjoy being with my bff and I know I could love both her and my girlfriend however I completely betrayed her trust. Also I don’t want to kill my friendship by “choosing” my girlfriend. Idk what to do and I feel like I ruined everything. HELP