Once a cheater…. (11 photos) Megan Resig on Jan 18, 2013 in Celebrity "News" View as Slideshow 1 …are they always a cheater? Check out some celebrity affairs that made big news below. (Above: Brad Pitt left Jennifer Aniston for Angelina Jolie.) View as Slideshow 1 David Letterman admitted to multiple affairs. One lady was his personal assistant. Wait, my bad. She would not be considered a lady. 2 Tea Leoni split from David Duchovny after he admitted to a sex addiction. 3 Arnold Schwarzenegger had an affair with his family’s housekeeper, and fathered a son… yikes. 4 Tiger Woods cheated on his wife, Elin Nordegren, with too many ladies to count. 5 Jude Law cheated on Sienna Miller with the nanny of his children. How can you even get better than Sienna Miller to begin with? Whyyyyy? 6 Ashton Kutcher was caught cheating on Demi Moore with multiple women. 7 Meg Ryan cheated on her husband Dennis Quaid with Russell Crowe. Awkward. 8 Jesse James and Sandra Bullock’s marriage collapsed after Jesse’s affair with a supermodel went public. 9 K. Stew had an affair with a married man, the Snow White and the Huntsman director, Rupert Sanders. Robert Pattinson called it quits, then rekindled his relationship with Kristen for a few months. Have no fear, he recently broke up with her again. 10 Hugh Grant wasn’t keeping it classy. He cheated on Elizabeth Hurley with a prostitute. Low blow. Category: Celebrity "News"