I have a FWB and he came over last night. We were talking about us and I asked him if he would tell me if he started sleeping with someone else while we were still FWB. He said no because it wouldn't be any of my business if he did or not. I told him that since we are sleeping together then I have every right to know if he is sleeping with someone else and that if I happened to have sex with someone else then I would tell him. What do you think?