He's called a player. Looks for it wherever he can get it.
Don't lose contact with him if you think you have a good friendship with him. If you don't, what is the point in keeping contact with him?
If he asks for sexual stuff when you are not willing, obviously don't do it. Stand your ground. And if he really wants you, he'll learn to live with just you.
But Leopards don't always change their spots.
-------
From a distance you look like my friend,
even though we are at war.