My friends with benefits asked how I felt about him and misunderstood me trying to say I cared about him (I tried to qualify this as a very good friend who I’ve created somewhat of a closer bond with due to sex), but I must not have said it right bc he now thinks we're in love and that he's my boyfriend. He told me himself we could never be together but now is acting totally different. I don't want to end the relationship we currently have, but I'm not in love and can't see us dating. I don't know what to do. How to do I tell him?