Most Helpful Guy
No, he has clearly moved on if he just wants to be FBW. He must still like you if he wants to see you some more, but his feelings probably aren't very deep, and him just up and asking for friends with benefits after dumping you is too far... Block this guy, or if you still like him just keep him as a friend-without-benifits.
Most Helpful Girl
He sounds really immature. Wants his cake and eat it too.
Ew, he sounds so annoying.