Vicki Gunvalson knew a lot more about Brooks Ayers' allegedly fake cancer that she revealed during the 10th season of The Real Housewives of Orange County.

'RHOC' Star Vicki Gunvalson Spotted With A New Guy!

Last night, Gunvalson appeared on Andy Cohen's late night show, Watch What Happens Live, where she revealed a number of shocking things told to her by her former boyfriend.

“[Brooks] said, ‘You’ll never have access to my medical records,'” Gunvalson told Cohen, according to an episode recap by Radar Online on Tuesday. “It was another red flag. Every night I fought with him, every night... 'Brooks, what’s going on? Do you have cancer? I don’t get what’s going on here.'”

Brooks Ayers' Job Raises More Questions Regarding His Cancer Diagnosis

“He kept saying, ‘Stay out of it, stay out of my health care, it’s my journey. You’re filming a reality show, it’s not about me,'” she continued.

During an interview earlier this month with E! News, Ayers admitted to fabricating hospital documents, although he still claims to be suffering from stage 3 Non-Hodgkin's Lymphoma.

Also during her interview with Cohen, Gunvalson dropped a bomb, claiming she regrets divorcing her former husband, Donn Gunvalson, whom fans saw for years on The Real Housewives of Orange County.

“I think if I had to do it all over again I would not have divorced Donn,” she said. “I know that for a fact. Hindsight if we could do things differently, he was a great man, great husband."

For more from Vicki Gunvalson's interview with Cohen on Watch What Happens Live, check out the clip below.