You are not going to change his mind. Do you really want to? You've stood by him and he's repaid you by being ungrateful and inconsiderate...do you want to stick around for him to continue to hurt you because he's not acting how you wish/want him to?
You cannot change a person, you cannot change him, he will not be who you thought he was going to.
Take it a day at a time...but move forward in your life. Unfortunately, that move forward means move forward without him.