The Oscar-winning actress met and fell for Mort on the set of The Brave One in 2007 and has been seeing her ever since. "The affair heated up last year and the pair have been quietly seeing each other since then," The Sun quoted a source, as telling the National Enquirer magazine.
Foster's relationship with Bernard was an open secret in Hollywood but the actress only went public five months ago at an LA film gala. The couple, who have two boys, are still living together in Hollywood but Bernard is said to be 'devastated' and Foster plans to move out. "They will continue to raise the boys together," a source said.