Getting even. My husband cheated and the woman KNEW we were married.?

My husband I divorced.....the woman moved on to someone else. I just sooooooo want to get even with her. Lot of bitterness in my heart. It is different when the "other woman" had no idea that the guy is married but to purposely wreck a marriage. I had talked to her several times. Our children go to the same school. She has moved on to a new guy and left her kid here with one of her kids friends parents. I am angry at him too. 2 days after the divorce he wanted to reconcile. I do still love him....I just don't trust him and I would have rather he had hit me than cheat on me. Please no rude comments.