Reason number 247 not to cheat on your spouse: They might sue the person you cheated with! According to CNN, more and more people are turning to a law that dates back to 1864 called the “Alienation of Affection” law. It’s basically a way for people who’ve been cheated on, to get even more money than they would out of a divorce. How? Because they can sue their adulterous spouse AND the person they cheated with!