You won’t change him. I have heard many women who have rejected the ‘nice’ guy to go and marry the ‘handsome’ guy who was rough and tough and beat them thinking that once married they could change and mold him into a perfect husband. Lose this notion, there are only two people who can change a person, themselves and God. But God will not infringe on a man’s freedom of choice so ultimately it’s only themselves, and you can pray that God will show him the error of his ways, and he himself changes.