One More Try
I don’t know if this makes you lucky or if your wife is way too forgiving. At no point should anyone ever beg a person who has lied to them, disrespected them, and humiliated them to stay. Everyone wants to believe that if for some reason this horrible thing should happen that it was a one-time lapse in judgment.
The truth is that it is usually a character flaw that they enjoy. For whatever reason, they need to feel the excitement they get from always being about to get caught and the exhilaration they feel when they got away with something again. It is sick and it is twisted but it is not love. Those people are toxic.