In this week's Real Housewives of Beverly Hills, we saw Lisa Vanderpump refuse to say with certainty that Mauricio didn't cheat on Kyle Richards. Now, Brandi Glanville says that Lisa was in the wrong.

"I am really feeling sorry for Kyle at this point with the ongoing, back-and-forth stance Lisa is taking about the Mauricio cheating scandal," Brandi writes in her Bravo blog. "Yes, we have all talked about it, and I myself even brought it up at lunch. But we all agreed it was BS."

"Months ago when it first came out, Lisa said she didn't know if the stories were true or not, which leaves people doubting Mauricio," Brandi continues. "Then, she brought it up in front of Kyle and Mauricio's five year-old-daughter Portia, which was so inappropriate. When I brought it up to the group at Carlton's lunch, Lisa cut Yolanda off in the middle of her sentence and said 'you mean there is no smoke with out fire,' but then added she knew it was all rubbish. Which is it???"

Credit: Bravo © NBC Universal, Inc. Photo: Joyce in Real Housewives of Beverly Hills Season 4, Episode 4

Brandi feels that Lisa was too wishy-washy when talking about the rumors with Ken. "Now, again sitting talking with Ken (knowing full well the ramifications), says she doesn't know if it is true or not and that they will never really know the truth," Brandi says. "I'm with Ken on this one — you should always let a friend know about harmful gossip, because it sucks to have people talking behind your back."

Brandi explains why she agreed to go on Joyce Giraud's trip. "Joyce invited us all to Palm Springs and, although she wasn't my favorite person at the time, I begrudgingly accepted," she writes. "I just really didn't enjoy Joyce trying to drive a wedge between Yolanda, Lisa, and I simply for the sake of getting herself some attention with her embellished story."

Do you agree that Joyce is trying to cause issues between Brandi and Lisa? And is Lisa being a bad friend to Kyle by questioning Mauricio?

Source: Brandi's Bravo blog