Watch: Dean McDermott Addresses Cheating on Tuesday's True Tori

Lifetime's True Tori is an honest look at Tori Spelling's life after finding out husband Dean McDermott cheated. This week Dean returns home from rehab and a friend asks him point blank why he chose to cheat. In an unfiltered moment, the actor explains drugs and alcohol played a huge part in his actions. Hear the answer straight from Dean's mouth in the jaw-dropping clip below. And watch True Tori on Tuesdays at 10 PM on Lifetime to find out how the family is coping in almost real time.

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