Matt Willis has admitted he is surprised wife Emma Willis didn't leave him at the height of his addiction issues.
The Busted singer, 40, says he caused the former Big Brother presenter, 47, "so much agony" during his battle with substance abuse and he will always be "indebted to her" for sticking by his side throughout his ordeal.
Matt, who celebrated his 40th birthday over the weekend, opens up about his struggles with drugs and alcohol addiction in his new BBC documentary, set to air later this month.
