You are smarter deep down inside than you realize. He hasn't changed. That smart part of you knows that and is incapable of responding to him as if he really had.

You don't mention children, and I'm thinking maybe you are lucky enough to not have that consideration to weigh in all of this. If that is the case, then get out of this marriage. He will cheat on you again. He is not committed to you in the way that you want him to be. He's not capable of that kind of commitment.

You can have passionate, satisfying love again. But not with him. You don't trust him, and you never will again. You're just not that stupid. That's what your body is telling you.

This husband of yours is a playboy. He always will be. As you get older, his need for younger women will just get more intense. He probably can't help being this way. No amount of therapy can fix this.