As part of an interview airing on Monday's
admits, "It has been a tough year, and not something I expected," referring, of course, to his split from
, who famously "outed" her husband's substance abuse problem in a
profile. "I was disappointed that the details of our relationship became public," he says, "[But] they were absolutely true, absolutely true. I am so grateful to Hilary for her support of me in a very difficult time in my life, three-and-a-half years ago. What hurt me more than anything is that people would think that she wasn't there for me, and she was. I will always love her."
's Monday Lowe-down: a preview of his role on the new season of