The explosive drama unfolded at a sit-down dinner between the two friends and Dorit Kemsley. After waiting 30 minutes for her tardy friends to arrive, Vanderpump could hardly wait to spill the "great news" that the lawsuit brought upon her and her husband, Ken Todd by one of their employees had been dismissed.
"I'm so happy you have no idea!" an elated Vanderpump remarked.
However, Richards and Kemsley reacted carelessly and immediately switched the subject to drama from the night before, when Kemsley approached Teddi Mellencamp Arroyave and called her a "lying, psycho b***h."
At the time of the fight, Vanderpump sided with Kemsley, while Richards backed up Arroyave.
Kemsley admitted she didn't think it was Richards' place to stick up for Arroyave, which prompted Richards to out Vanderpump for also getting involved.
"She was chiming in the entire time!" Richards said to Kemsley about Vanderpump.
"I'm not against Teddi at all," Vanderpump, growing angry, said defensively.
Seconds later, Richards broke down crying at the dinner table.
"I just feel like you guys decided to do this to me or something," she tells Vanderpump and Kemsley. "I was trying to be a devil's advocate because you weren't seeing someone else's point. I don't feel like you're seeing mine either right now."
Vanderpump then stands up and exits the restaurant.
"I'm not dealing with this bullsh*t," Vanderpump said as she was getting in her car. "I'm going. I'm f**king tired. You guys figure it out. I'm going home to my husband who'd rather spend time with me."
A day later the three continue the feud – this time at Arroyave's multi-million dollar beach house in Dana Point, Calif. where she hosted a potluck.
Two minutes into their arrival and Vanderpump calls out Kemsley and Richards for brushing aside her exciting lawsuit news.
"Maybe you didn't like it wasn't about you for a minute," Richards barked at Vanderpump.
Richards then blasted Vanderpump for leaving her at the restaurant in tears.
"It just has me questioning where our friendship really stands and how much she genuinely cares about me," Richards told the camera.
Richards, visibly upset, told Vanderpump she feels their friendship is not "balanced."
"Maybe I'm not as important to you as you are to me," Richards let out.
To Richards' surprise, Vanderpump caved and apologized.
"I'm sorry if I was unfair to you. I apologize for leaving but also why don't you apologize to me for saying that maybe we were plotting to have a go at you," the dog rescue owner said.
The longtime friends apologized and promised to remain loyal to each other.
"We always have to be honest with each other," Richards told Vanderpump.
"None of this was anything worth crying over," Vanderpump added.
Meanwhile, Lisa Rinna admitted she was in "denial about everything." The former Days Of Our Lives star juggled the pressures of returning to the soap opera and planning her 19-year-old daughter, Delilah's big move to the Big Apple.
In a sneak peek at next week's episode, Kemsley appears to be in the hot seat once again as Camille Grammer her out for going behind the girls' backs.
The Real Housewives of Beverly Hills airs Tuesdays at 9 p.m. EST.
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