The "Real Housewives of Orange Country" star, Vicki Gunvalson, revealed her shocking breakup from Brook Ayers in her interview with "Watch What Happens Live" on Monday night.

The 53-year-old TV personality revealed the reasons behind her August breakup with her lover, Ayers. The former couple reportedly faced up and downs in their relationship, including a cancer scare and Ayers' misunderstanding with Gunvalson's daughter, Briana. It was reported that the star was more dramatic off screen than in the Bravo reality show, "The Real Housewives of Orange County."

"There were lot of things. I just think that the conflict with Briana, and him and I and him being from the South, he really wanted to go back to the South, and I just think the stress of the show, and he's sick, and at the end of the day it just didn't work anymore," she said. "Long-term, we were not gonna work," she added. "Short-term, it was amazing." 

Meanwhile, as for the 47-year-old's cancer scare, it was reported that the former boyfriend of the Hollywood actress was diagnosed with stage 3 Non-Hodgkin lymphoma. Tamra Judge, a close friend and fellow co-star of Vicki, apparently questioned Brook's illness. It was reported that she thought Brooks' medical illness was fake.

"I don't know a lot about cancer, but you don't do three rounds of chemo and go, 'ehh I don't want to do it anymore," she said.

As for Vicki, it made her realize that her co-stars were not her true friends.