Vicki Gunvalson has had enough of her co-star Meghan King Edmonds' infatuation with her ex-boyfriend Brooks Ayers, and his cancer diagnosis and treatment.

Meghan King Edmonds Is 'Proud' Of Hayley After She Calls Vicki Gunvalson A 'Dumb B***h'

In a new tweet to a fan, the Real Housewives of Orange County star, who has continuously defended Ayers throughout season 10 against allegations of having faked his diagnosis, Gunvalson slammed Edmonds for being "obsessed."

Vicki Gunvalson's Daughter Refuses To Stay In Her Mother's Home While Brooks Ayers Is Living There

Also on Twitter on Monday night, Gunvalson addressed allegations of bullying her co-stars.

On next week's Real Housewives of Orange County, Edmonds admits to her co-stars, Tamra Barney, Heather Dubrow and Shannon Beador, that she's done some investigating into Ayers' past.

“I had looked at a blog and I saw comments on a blog and a couple of the comments were from women claiming to be his ex-girlfriend, or whatever, and how he didn’t have cancer,” Edmonds explained. “Turns out, one of these two women is from a small town in Mississippi, where one of my good friends from college is from. I call my good friend from college, she got me her number and I texted her."

For more Vicki Gunvalson, tune into The Real Housewives of Orange County season 10 on Monday nights at 9 p.m. on Bravo, and check out a sneak peek at next week's episode below.

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