Duchovny, who plays a womanising writer on the TV show Californication, recently left rehab after completing a course for sex addiction. US People magazine has published a statement on behalf of the pair confirming the split, saying they had "in fact been separated for several months". Thornton, who starred as the U. It was Miss Leoni who persuaded her husband to receive treatment for 'sexual compulsion proclivity' at the Meadows clinic in Arizona, followed by further treatment at the Keystone centre in Pennsylvania. A spokeswoman for Leoni said: "She is living on her own with the children in New York, but we did not want to announce it for the sake of the children until after David had received treatment for his problems.