Mandem I have a question help a 🥷🏿 out

I’m talking to this one fine gyal and she doesn’t have a crazy past and has 0 bodies. But only thing she did was have her first and only kiss but it was with my best friend. She said she never had feelings for the guy she only did it cuz she wanted attention. And I asked my friend abt it he said he got dared to do it and it wasn’t anything serious. They linked up at night and he just kissed her didn’t even make out apparently cuz some next mon betted 50$ to do it 💀 he got his bread and dipped . I’ve been In a relationship for a year with her and ngl everytime I think abt it it cheeses me and I lose feelings and I link my friend every other day and always think abt it too. Idk what to do ngl am I buggin? I just don’t want my girl to be someone a person can brag doing smt with. I overthink bare abt it esp since there in the same class too

What yall think? Should I breakup with her?