On leaving his first wife: I’m of the opinion that people should only be in relationships if they want to be in them. Yes, it’s noble to stay with someone forever out of obligation even if you’re unhappy because you promised you would when you were 25 years old, but you get one life here.
People who cheat violate a trust, but it’s indicative of needing something in the relationship or themselves. People are human and have needs.
He could have been better about the cheating but if someone has reached the point of cheating that relationship is over anyway.
Just my opinion. You feel what you feel. No one should be obligated to stay with anyone else.
I agree that he should be crucified for the war mongering though.