Olivia Munna and John Mulaney opened up about the role his history with addiction plays in their relationship — and the steps they’ve put in place to help keep the father of two on track.

John Mulaney spoke frankly about his public battle with drug addiction and his recovery in his GQ Man of the Year profile published Tuesday. As the outlet noted, his pre-recovery stand-up was clearly “as drug soaked as a 1970s Stones record” but that ...