I think it may be time to tell him you hear what he is saying validate his feelings and send him his apology. Then block him and let your lawyers handle it.
If he’s still miserable in a few years he will for the first time think that maybe you weren’t the problem. I read once where recons are high if the person was breaking up with the situation and not the person.
Like G-Money said “if he changes his mind he will let you know”.
