Vicki Gunvalson will be featured in a Bravo special later tonight, and during the show, she will be revealing new details about her former boyfriend's alleged cancer lies.

Brooks Ayers Has Responded To Briana Culberson's Shocking 'RHOC' Revelations

Speaking to Andy Cohen, the Real Housewives of Orange County star doesn't hold back.

“[Brooks Ayers] had to fabricate this lie all the way prior to filming, because he got diagnosed in September/October of 2014,” Gunvalson explained in a preview, shared by Radar Online on Monday. “We are now in November of 2015, so this lie had to be fabricated and thought out long before filming.”

Hospital Says 'RHOC' Star Brooks Ayers Was Lying About Cancer Treatments

“You said that when Brooks does chemo he gets a fever he starts vomiting…for about five days,” Cohen recalled, asking the longtime reality star, “Knowing what you know now, what do you think caused him to become so sick those days?”

“I actually contacted a couple of people, and they said you can actually take eye drops and it can make you violently ill,” Gunvalson explained. “I don’t know if he did that, that’s pretty sick, but I witnessed him with fevers and white sweats and chills. I mean, he lost 42 pounds in three months.”

“The extent of what I did for this man to try to cure him, I can’t even tell you,” she added. “Time and money, and time and money, I spent on him.”

Despite the mounting evidence against him, Ayers maintains his cancer diagnosis is real. 

Watch What Happens Live One-on-One with Vicki Gunvalson airs tonight Monday, Nov. 23, at 8:30 p.m. on Bravo.

Tags: brooks ayers Vicki Gunvalson Bravo Reality TV The Real Housewives of Orange County