My husband cheated on me and I continued to live together for the children! But I think about it every day. They still rent a house together. What if I'm crazy?

Then get a divorce, or you'll go crazy. For the sake of the children, you can't stand it now. You're going crazy. Might as well get divorced. At least if you have children, he will pay for your living expenses and your children's living expenses, and he will also benefit from paying a heavy price. At least he won't cheat in the future, otherwise the divorce will have a great impact on his economy.