Yolanda Foster's Lyme disease diagnosis has been a hot topic of discussion all season long on The Real Housewives of Beverly Hills, and her longtime friend, Erika Girardi, the show's newest addition, doesn't like it one bit.

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After hearing a number of her co-stars discussing whether or not Foster's two children, Anwar and Bella, were truly suffering from the illness along with their mother, Girardi went right to her friend and filled her in on the conversation.

"When Yolanda asked what happened after she left the party, I told her," Girardi explained to readers of her Bravo blog on Thursday. "The situation is upsetting to her, and she’s been through enough already. Like I said last week, we should be more sensitive when discussing other people's children and the challenges they may face. But as her friend, I will look out for her."

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Girardi went on to speak of Lisa Rinna's meeting with Foster, in which she admitted to participating in a conversation, which posed questions as to Foster's diagnosis.

"I think Lisa Rinna did the right thing to have a face-to-face conversation with Yolanda regarding her illness," Girardi said. "Speculation and 'chatter' about something so serious and personal is hurtful, and it causes division within the group. I’m glad they were able to talk it out one-on-one. Perhaps they can move on from here."

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

Tags: The Real Housewives of Beverly Hills Bravo Reality TV yolanda foster erika jayne