Today, Arnold Schwarzenegger dropped a bombshell that he fathered a child with a former household staffer. Then again, I guess it wasn’t all that surprising considering the action movie star turned governor had infidelity rumors swirling around him. Now, he and Maria Shriver are calling it quits after 25 years of marriage. Cheating, divorce and short-term marriages are common in Hollywood. Here are some other celebrities who have gone their separate ways after an affair.