Former Project Runway mentor Tim Gunn has detailed why he hasn't had sex for more than four decades. During the Thursday, February 19, episode of Chelsea Handler's "Dear Chelsea" podcast, Gunn, 72, explained that he's been celibate for 43 years following a devastating breakup. "I had a very serious nine-year relationship in Washington, D.C., and I loved this person deeply and would have done anything for him. And I still remember the night that it all ended," Gunn told Handler, 50. "We were in bed watching M*A*S*H ... he said to me, 'I have no patience for you any longer. I want you to leave.