I think you would need to look at the reasons WHY the husband cheated. Sometimes it's just for kicks, but sometimes there are problems in the marriage that mean cheating is a symptom, not the main problem.

I have been cheated on and in my case it was not my fault. (Abusive narcissist ex thought the world owed him everything.) So I do understand how it feels. But if your perspective is that one party is innocent/wronged and one is this terrible villain who has to feel bad, I'm not sure how far you'll get in counselling. You will need to be open to another point of view.