Kyle Richards explained more of what fans didn't see of Lisa Vanderpump's Munchausen Syndrome in her Real Housewives of Beverly Hills blog last night.

For the past couple of episodes, cast members have been playing the blame game in regard to who started the Munchausen conversation early in the season, and while Lisa Rinna previously revealed it was her hairstylist, there is now speculation into why the topic was so highly talked about.

"What happened that day at LVP's when Rinna said the word Munchausen was very clear to me, which is why I confronted LVP right after," Richards told readers of her Bravo TV blog on Tuesday. "We had the discussion in her bathroom. That is when I said, 'I know what you're up to, and I will take you down in flames with me' half laughing, because I just didn't want to make a big deal out of it."

According to Richards, she and Vanderpump had an off-camera conversation about the topic, but she didn't mention Rinna's claim that Vanderpump had noted the Munchausen allegations as their season six story line.

"I called Rinna right after to talk to her about their conversation. Long story short, I knew what was said but shrugged it off. I had a lot of stress going on with my sisters at the time, and I just couldn't take more tension with someone I care about," she explained.

Still, the topic continued to be talked about throughout the season, and last week, Rinna made shocking allegations against Vanderpump, claiming she had suggested they keep the issue alive.

"When we were in Dubai at the Arabian Nights dinner and Rinna pulled LVP aside to talk to her about that day, I was happily clueless," Richards recalled. "When LVP and I got back to our room, LVP and I discussed what Rinna had said. We both knew it would come up again. I reminded her about our conversation in her bathroom that day which we discussed at length."

Also in her blog, Richards spoke about the return of her sister, Kim, and her chat wtih Rinna.

"Watching Rinna and Kim's conversation, I can see where Kim felt Rinna was patronizing her. I don't see Kim and Rinna ever being friends, and I think it's best honestly," she said.

The Real Housewives of Beverly Hills season six reunion starts next Tuesday night at 9 p.m. on Bravo. Check out a sneak peek at part one of the upcoming special below.

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Kyle richards, Kim Richards, Lisa vanderpump, Bravo, Reality TV, The Real Housewives of Beverly Hills