Sit away from him. Make no eye contact. Ignore any texts from him. Just watch the game and plan a quick exit. I think something has to give here with these games. It's not good for you or the kids.
There's nothing wrong with giving yourself distance from his crazy. In the words of Monty Python..."Run away, RUN AWAY!!"
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson