Calling Rinna "despicable," Foster wondered rhetorically, "Who in the world has three years to fake being sick?"

Here is a brief list of statements that Lisa Rinna made about Yolanda Foster on Tuesday night’s The Real Housewives of Beverly Hills, descending in order of fear:

“Yolanda, for me, is not an easy person to talk to.”

“I am not super comfortable, so this is really hard for me to go over to her house, in her surroundings, and completely open up and be honest with her about something ugly.”

“[We] talked it out.”

And here is a brief list of statements that Rinna made Tuesday night about herself:

“Sometimes I can be impulsive, a stupid a–hole.”

“I’m feeling like the biggest piece of s— on the planet.”

“My higher self is a really good person.”

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That’s right: Episodes in the making, this week saw Rinna finally sit down with Foster and admit, in perhaps the most remote terms possible, that she had “engaged” in “outside chatter” about Foster’s behavior while battling Lyme disease.

Specifically: Were Foster’s Instagram posts appropriate for a sick person? Was Foster even really sick with Lyme disease?

Rinna, who met Foster at her home for their clear-the-air conversation, mentioned that this “chatter” also included talk of Munchausen syndrome, which Foster knew nothing about.

She was baffled! And told the camera that she had never even heard that word before, let alone become familiar with the diagnosis. It was of course all nonsense.

And so Rinna, who said she was “not super comfortable” around Foster, apologized to her about participating in the Lyme disease discussions without ever once clearly admitting that she had actively brought it up in previous episodes. That felt like a cop-out designed to create more drama.

But not in Rinna’s eyes. At a joint anniversary party for Kyle Richards and Lisa Vanderpump, Rinna said she felt as though the two had talked things through and were now moving on from a place of mutual understanding.

Foster, speaking to Erika Girardi early in the episode, had a different take.

Calling Rinna “despicable,” she wondered rhetorically, “Who in the world has three years to fake being sick?”

If this issue isn’t going away – and it doesn’t seem to be! – then it will probably get worse before it ever gets better.

Because now Foster also knows that the women were talking about her children, Bella and Anwar, and their own struggles with Lyme disease.

Or in the words of some of the other women: Did her kids even really have Lyme disease?

Foster had an answer to all these questions.

“I wish they would use the energy they’re wasting talking about me to come take care of me.”

The Real Housewives of Beverly Hills airs Tuesdays (9 p.m. ET) on Bravo.