The 41-year-old star, whose reality TV series 'True Tori' documented her efforts to rebuild her marriage after McDermott cheated on her with Emily Goodhand in December, said she is afraid to ask him about affairs, reported Femalefirst.
"If he says that there weren't any other woman, I don't know if right now I can believe him and trust that's true," she said.
"I'm still afraid because I feel like there's no good answer," she added.
Spelling said she will leave McDermott if she discovers he is cheating on her with other women.