Tori Spelling's Husband Dean McDermott Reveals Drug Use in New 'True Tori' Clip

PHOTO: Dean McDermott and Tori Spelling as seen on July 6, 2013 in Los Angeles, California. Getty Images
Dean McDermott and Tori Spelling as seen July 6, 2013, in Los Angeles.

More teaser clips from the TV show "True Tori" are starting to pop up online in anticipation of tonight's new episode on Lifetime.

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One clip features Tori Spelling telling her husband Dean McDermott "you can't understand what I went through that day" -- referring to the day she found out he cheated with 28-year-old Emily Woodhand.

"I can't forget what happened, I don't know if love's enough," she tells the cameras later in the clip.

Read: Why Tori Spelling Doesn't Blame Dean McDermott's Mistress for Infidelity

The affair was first reported in December. Shortly after, Spelling, 40, and McDermott, 47, allowed cameras to film the aftermath of his infidelity and his stay in rehab.

In another clip obtained by the Daily Mail, McDermott has a friend over, who asks him why he cheated.

"Cause I didn't think that I would get caught," he said. "I was drinking and using drugs man. I was not dealing with things that happened to me in the past. It's not like I was looking for sex."

He added that his relationship and sex life with Spelling was "solid."

Related: Tori Spelling and Dean McDermott: How He Chose His Mistress

"I have a brain that wants to kill me, I have a brain that wants me dead, that's how the alcoholic mind works and thinks," he said. "Have a couple cocktails, do a couple lines, shut it down after three lines. 'You can do that, you can do that Dean.' Cut to the sun rising, it just never works out that way."

McDermott admits "hitting your bottom" is how you fight his issues.

"I need to change," he said.

McDermott and Spelling have four children -- Liam, 7, Stella, 5, Hattie, 2, and Finn, 1.