I was dating someone who was in a FWB relationship. It has since come to light that he was still sleeping with her whilst seeing me. We went out for 2 months and I slept with him after 1 month.
So although we weren't going out for long he cheated on me really early on in the relationship and lied continuously when I found out.
My question is could I have done anything to stop this from happening? I would have understood if he ended it with me if we weren't sexually compatible, but he didn't.
For those who have been in FWB situation is it hard to let that person go? Maybe he has deeper feelings for her, although she is sleeping with other people and it doesn't seem to bother him.