The one that should be humilated is not you. I was the opposite and told everyone. I knew if I kept in to myself, my WH would possibly continue the A. He very much cares what others (especially his large family) think of him. He was the one that was humilated by what he did. He was especially humilated on DDay#2 after he had taken it underground for another year and his family had saw how bad I was trying to save our marriage. It did wake him up the second time around when he thought he was going to lose me for sure.
There are times that I wished people did not know because everyone thought we were such a perfect couple before the A. They were in shock when they found out what he did. I also let them know that if I caught him doing it again, there would not be a third chance to pull his head out of his ass and I would D him.
The decision to tell or not tell is a hard one and there are pros and cons to both. Only you can decide which is best for your situation. (((HUGS)))