"I said to Andy, 'If I didn't have a business, I would have grabbed Luann by the throat,'" Frankel candidly told fellow WWHL guest Michael Rapaport when asked if a RHONY reunion could ever get physical, a la Real Housewives of Atlanta. "I wouldn't have minded strangling her," she said.
"I would have enjoyed it," Frankel added, as host Andy Cohen appeared visibly shocked.
The 45-year-old Skinnygirl mogul also defended herself when it came to showing de Lesseps a photo of her fiancé, Tom D'Agostino, Jr., kissing another woman just days after their engagement. During the show's finale, de Lesseps told Frankel to stay out of her business.
"It just was interesting that Luann never mentioned that, 'Oh God, my guy cheated,'" Frankel said. "It was all me. I'm terrible, I'm the terrible person -- shoot the messenger."
"What did I really do? I didn't know what to do and I'd do it again," she continued.
In Bravo’s dramatic, three-part RHONY season eight reunion, 51-year-old de Lesseps didn't hold back on the explosive allegations that Frankel was a mistress. De Lesseps is referring to Frankel’s boyfriend, LawCash CEO Dennis Shields, who -- according to Frankel's tweets -- is separated from his wife.
"[Bethenny] was going out with him for a while, while he was still married, living at home," de Lesseps said, which Frankel denied. "Everybody knows it! … This has been going on for a long time. So as much as you want to say that he's separated, you're separated -- that is a lie. … That's not how it started!"
"I have other people that know you've slept with married men," she added.
ET caught up with Frankel last month, when she admitted that the unpleasant reunion experience has caused her to question whether she wants to keep appearing on the Bravo reality show.
"It was very, very negative and I didn’t enjoy it at all," Frankel said. "Something very dramatic happened … that questioned my integrity. If someone questions my business or my integrity I take it really seriously."
"I live my life honestly," she continued. "You have 50 percent of the cast that has a whole taboo, police line, ‘do not cross’ section of their life that is not discussed on camera and never has been. For legal issues and liability issues, Bravo doesn't need to bring it up and it's a difficult line to ride, and that may be why I don't come back."