I don't know what to do or how to feel


My boyfriend (S) let me have a friend with benefits (W). Today he got jealous and decided not to allow it anymore. I told him I was ok with it but I'm really not. I've grown to love W and it makes me sad that it has to end. W loves me dearly and I love him too. What should I do? I didn't want to tell S I wasn't ok with ending it because I felt like he would get the wrong idea and think I loved W more than him or something which would probably cause us to break up. Please tell me what I should do. I love them both.... I don't want to stop being fwb with W and I still want to be with S. Any help is appreciated.... thank you