That didn't stop her from carrying on with her director. The two have said that they would continue to work on their relationship.
The two did reconcile, but despite her best efforts, wen't their separate ways.
Dennis explained that it happened a long time ago and that Meg should stop living in the past.
Madonna Madonna was still married to Guy Ritchie at the time while carrying on with baseball ace Alex ' A-Rod' Rodriguez.
Katharine Mc Phee A recent joinee to this club, the pop star was caught kissing a married man, the director of her TV show Smash.
At the time, she was separated from her husband, Nick Cokas and was trying to improve their marriage.
After the public found out about the affair, Meg divorced, and then continued dating Russell for another year.
However, in 2008, the actress said that Dennis was also cheating on her while they were married.
The fact that I cheated on my husband is probably one of the biggest regrets of my life", she revealed.
Meg Ryan This American sweetheart was still married to Dennis Quaid when she had a brief affair with Russell Crowe in 2000.
Call all men cheaters if you will, but women aren't too far behind either.
If the likes of Tiger Woods, Jesse James, Arnold Schwarzenegger, Brad Pitt, Ryan Phillippe and others strayed the field, well-known actresses and singers also ended long-term relationships or marriages while falling for a new guy. Kristen Stewart The paparazzi caught Kristen Stewart cheating on Robert Pattinson, her Twilight co-star and long-term lover, with Rupert Saunders, her married director from the film Snow White and the Huntsman.