It doesn’t have to blame the marriage for the cheating. Of course he made the choice to cheat. They needed counseling to work on their issues that led to him making those choices which are legion. There’s a lot going on here which I’m not sure if you’re aware of, not sure if you care (clearly no one is asking you to be by any means!) I’ve followed him for years and I’m definitely not excusing the choices he’s made. Just trying to be a friend because he could damn sure use one. Have a good day 💜