Tori Spelling reveals how she learned Dean McDermott had cheated

As the premiere date of “True Tori” draws closer, Tori Spelling’s public humiliation surrounding her marital problems continues to come out in dribs and drabs courtesy of Lifetime television.

“I got a call from my publicist and she said, ‘I just want to tell you something,’” Spelling, 40, says in a new clip out Wednesday (via E! News). “‘It’s a girl, and she’s claiming that she had an affair with Dean in Toronto when he was there. The girl has come forward. She’s put her name to the story. She’s giving all the details about her two-day affair with your husband in Toronto, and it’s going to come out next week -- Christmas.’”

The “Beverly Hills, 90210” alum and reality-TV star said she took husband Dean McDermott, 47, outside immediately to confront him. “My heart was pounding so fast, like it is right now, that I could barely speak,” she says in the clip.

The “girl” turned out to be 28-year-old Emily Goodhand, whom McDermott reportedly met at a Toronto hotel and spent two nights with while promoting the Food Network show he hosts, “Chopped Canada.”

“He told me he and Tori had a sexless marriage,” Goodhand told US Weekly in December. “I believed him.”

McDermott entered rehab in late January to deal with “health and personal issues” that turned out to be sex addiction.

“I am truly sorry for the mistakes I have made and for the pain I’ve caused my family,” the “Chopped Canada” host said in a statement at the time.

In a previously released “True Tori” preview, McDermott says on what appears to be a counselor’s couch that “Sex was an escape, just like drugs and alcohol.”

Edited together with that is footage of Spelling saying, “I can never give him enough sex, he’s never going to be happy with just me,” though it’s unclear if she’s making a declaration or giving an example of something that was running through her mind. There had to have been some measure of sex going on at some point, as the couple managed to produce children Liam, 7, Stella, 5, Hattie, 2, and Finn, 20 months.

(Incidentally, the two made a sex tape in 2009, a story the mother of four made public in her book “Spelling It Like It Is.”)

“True Tori,” the docu-series that debuts April 22 on Lifetime, began taping just three weeks before its premiere date -- meaning events are likely still unfolding -- and Spelling says in the first preview, “I’m well aware this might not have a happy ending.”

But is this only about her humiliation? At least one friend was questioning Spelling’s tell-all motivations.

“The decision to do this show is not coming from someone who is in a solid, good place. Tori is very, very upset and angry,” the pal told People. “A part of her wants to completely humiliate him and make him suffer in front of millions of people. She wants to have some sort of justice. She wants him to truly feel the pain of what he did to her.”

With his wife in “crisis mode,” McDermott’s life is “basically a nightmare” right now, the source told the mag.

Earlier this month, Radar Online reported that he was “far from a willing participant” in “True Tori” and had asked his wife to wait a few months before jumping into production. He “reluctantly agreed,” a source told the website, only because he felt the mess was all his fault, and because she insisted that they owed it to their fans to share what was going on in their marriage.

McDermott “was my soul mate, but he completely broke my heart,” Spelling told Us Weekly for its current edition. “It makes you not trust anything that’s happened in your relationship.”

One thing we can trust: If celebrities are willing to go public with their private struggles and shame, reality TV is more than happy to make that happen.

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