Most Helpful Guy
I don't actually know any man who's ever walked out on a marriage, and not tried to make it work. Even though some men file for divorce, it's usually just to finalise things after the wife left them.
If that was his true reason for leaving, it seems strange that he didn't mention it while you were were married. If he just wanted you to be more assertive, confident or otherwise strong, that's something you both could have worked on. With some encouragement, you probably could have sorted it out.
I don't think think this would be a common reason for a man seeking a divorce.