Kyle Richards and Lisa Vanderpump engaged in a bit of a spat on last night's Real Housewives of Beverly Hills.

'RHOBH' Kyle Richards Has Been Shut Out By Another Family Member

After throwing a BBQ dinner the episode prior, Richards was confronted by Vanderpump in regard to her failure to inform her of Faye Resnick being invited to the party.

"I had spoken to Kyle just prior and would've appreciated the knowledge that Faye would be attending," Vanderpump wrote in her blog on Tuesday. "Maybe I would've declined the invitation, feigning a headache, or honestly stating that I would prefer not to be in her company."

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Later in the episode, Richards and Vanderpump feuded yet again, after Richards claimed Vanderpump should have had her back during a conversation with Kathryn Edwards about Resnick.

"I had little understanding of why I should be drawn into any negative interaction between Kyle and Kathryn. I wasn't siding with the new girl as Kyle stated, and Kyle wasn't being attacked," Vanderpump explained. "She had no need for me to step in. It was a difference of opinion regarding that contentious character, which I had rather rudely referred to as an orangutan earlier. Shame on me, I shouldn't have...but I did. Her orangeness always conjures up that picture in my head. I should delete it and apologize. I should, but I won't."

The Real Housewives of Beverly Hills season six airs Tuesdays at 9 p.m. on Bravo.