You just have to trust. You can sit around moping that one day they will have an affair with someone in the room. It doesn't do any good. However, if your spose does end up cheating, kick them to curb and go get an attorney and take em for all they are worth. Don't buy into their blame games, addiction etc made me do it. Once they cross that line, they are not worth having around. Even with children, the kids are better off not being around such scum in the long run.