Sex addict David Duchovny and his actress wife Téa Leoni have split up - but not for the reasons one might think.It was not his 'sexual compulsion proclivity' that caused the break-down of their marriage, but rather his discovery of explicit text messages on her mobile phone sent by actor Billy Bob Thornton.

Through the texts Duchovny found out she had begun a relationship with Oscar-winning actor Billy Bob Thornton, 53, who was formerly married to Angelina Jolie.The couple are separating after 11 years and two children, daughter Madelaine West, 9, and son Kyd, 6.

Five-times married Billy Bob met Téa when they made a comedy film together earlier this year called Manure.