Is Tamra Barney a good friend to her Real Housewives of Orange County co-star, Vicki Gunvalson?

'RHOC' Star Vicki Gunvalson Continues To Defend Brooks Ayers' Cancer Diagnosis

The two women, who have appeared together on the Bravo reality series for the last several seasons, have had an on-and-off friendship, and on Monday, their relationship was pulled into question by their newest co-star, Meghan King Edmonds.

"Vicki seems to be very concerned with loyalty when it comes to Tamra and about respecting her elders," Edmonds wrote in her Bravo blog. "I am concerned with truth and I believe trust needs to be earned. At this point, Vicki hasn't earned my respect. And it's not fair to Tamra to play the loyalty card with her."

Vicki Gunvalson Defends Tamra Barney Against Ex-Husband Simon

"The truth is, if Vicki was loyal to Tamra she would've told Jimmy and me that Brooks said to HER (and not Tamra) what Jimmy supposedly said at the hockey game about our marriage (which is strange that they wouldn't address it to my husband when I brought it up, another lie I believe Brooks told)," Edmonds explained.

During last night's show, Edmonds confronted Ayers with allegations of him talking about her marriage, but according to Ayers, Barney was not a credible source. Barney, however, felt differently and later asked him about his hurtful comment.

The Real Housewives of Orange County season 10 airs Monday nights at 9 p.m. on Bravo. Check out a sneak peek at next week's episode blow.