This week on "The Real Housewives of Beverly Hills," the ladies went to see Erika Girardi perform as her alter ego Erika Jayne, while Yolanda Foster confronted Kyle Richards and Lisa Vanderpump for questioning her children's Lyme diagnosis.

To prove that she was telling the truth, the former model presented Lisa with a copy of Anwar and Bella's medical records and said that she should read them. Yolanda also said that Lisa should apologize to her children for what she said because she didn't want the issue to ruin the restaurateur's relationship with the teenagers. But Lisa didn't think that she had anything to apologize for, telling the cameras that Yolanda's ex-husband Mohamed Hadid told her that his children were "fine."

Meanwhile, Lisa Rinna learned that Erika was the one responsible for telling Yolanda about what was said about her Lyme disease. The soap opera star confronted Erika about it, but the singer denied it.

It appears that the issue regarding the comments about Yolanda's health hasn't been resolved because after the episode aired on Tuesday night, Yolanda and Rinna had a Twitter fight the very next day. Yolanda said on the micro-blogging site that Erika told her first about what the women said about her and that Rinna confirmed it.

The soap actress tweeted Yolanda saying, "I was your scapegoat, you already knew Erika had told on the beach about your kids. Why me? You knew the answer!" Rinna took another shot at the 52-year-old and asked her why she brought up their health condition on national TV if talking about them was off limits.

"Oh poor thing, u went from accusing someone of manchausen to playing d victim?" Yolanda fired back. "I think & ask bf I speak, do you?"

Next week, in the episode titled "Hearing Problems," tempers flare at Erika's outdoor pool party when some of the ladies talk about Yolanda's health condition again. Elsewhere in the episode, the ladies have lunch at Kathryn Edwards's home, but emotions run high when the name of Kyle Richards's sister Kim is brought up. Kyle meets up with an old friend who gives her advice for dealing with her sister, while Eileen Davidson gives Erika a makeover.

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