The best way to get back at him is by finding happiness without him. Prove to him what a mistake he made. It will eat him up knowing he made a mistake. Don't let angry or vengence cloud your heart. Afterall, he is in your life through your kids for a long while.
It was funny, when I worked for the Mouse people used to ask me for my business card just because it had Mickey on it. They could care less about me..... I actually have a Cinderella's castle sitting on my desk made out of my coworkers' business cards. I do have to say that working for the Mouse is quite different than visiting a park. That being said, it was the best job I ever had.
