Most Helpful Guy
I'm not friends with my exes afterwards anyway, but sometimes you can't just go to being friends. He seems to have a tough time adjusting. Mean or not time to cut the cord with him. If you don't want to block him then ignore him or wait days to reply and then reply with a word or two. He will get the hint.
Most Helpful Girl
Let him know to stop talking to in a sexual way. Then if he keeps doing it, stop answering his calls or texts. You have to put your foot down and mean what you say or else he will keep doing it.