Frankel, 44, meets up with her step-father, John Parisella, and they discuss what a terrible childhood she believes she had.
"Of all the three choices of parents that I’ve had, he wins the prize," the Bravolebrity says in the video.
Frankel then dropped the bombshell news that may explain why she has not spoken to her mother, Berndatte Birk, in over a decade.
"We had a real nice melting pot of my mother trying to commit suicide in the kitchen in front of me," she claims.
Now a mother of her own daughter, Bryn Hoppy, Frankel is incredulous about her experience with her mom.
"What mother would ever do that to their child?" she asks Parisella.
And he drops his own bombshell about Frankel’s mother.
"You have to understand, she never wanted a child," he alleged.
Check out the shocking video and tune into the Real Housewives of New York City Tuesday at 9/8c on Bravo.