Nah but really it sounds like he strayed from a bad option to a worse one and needs to start fresh.

If he REALLY loves the wife, he should battle it out and stay. I don't think it's irreparable. But it's a tough situation and this is why getting involved in any way with a second person can be so risky. Remember how many crazy motherfuckers you passed over when you were dating? It was easy to just not call back and deal with any fallout solo when you were single. Now you got your family and professional life fucked up behind some frustration and a KISS. L.