things are changing ¿

My fwb looks like the the type that gets around however I love hanging out with him and he is awesome in bed. The other night he called me and said he had feelings for me and that I was really cool. I like being around him and all but I'm surprised I'm not the one who caught feelings this time. He wants to possibly start dating and I sort of too. I'm always the one to like people that don't like me back so this is thrilling and gives me an ego boost however I don't know if I want to take it there. Idk if he would cheat on me if we became a thing cuz he says he can't go too long without sex and we don't live in the same cities. He's a lot more experienced than me as well