'RHOBH' Reunion Lisa Rinna Vs. Kim Richards Following Harry Hamlin Cheating Rumors: Eileen Davidson and Brandi Glanville's Co-Stars Rehash Feud

Fans saw all hell break lose last night, March 3, on RHOBH with probably one of the most intense feuds that has ever aired on the show. Lisa Rinna and Kim Richards found themselves in the middle of an explosive fight when Richards's sobriety came up in the conversation yet again. Their verbal feud quickly turned into a physical altercation with wine and glasses being thrown, and while it seemed like the feud was settled, apparently during the reunion the ladies rehashed their issues. While the girls reached a truce on last night's episode for the sake of the Amsterdam trip, it seems that when Andy Cohen brought up the "secrets" Kim was referring to regarding Rinna's husband, Harry Hamlin, the stars's relationship was once again put to the test, according to Radar Online.

"Lisa went after Kim for making the outrageous comments suggesting Harry has something hidden in his past that he doesn't want to come out," the source explained to the news site. "Andy Cohen asked Kim what the secret is, and Lisa pounced on her."

But it seemed like Richards didn't have anything to back up her story, as she just sat there while Lisa slammed the Real Housewives of Beverly Hills star, according to The Inquistr.

"Kim refused to answer, and revealed absolutely nothing, which disgusted Lisa," the insider explained. "She knew all along there was no deep, dark secret. She went off on Kim, accusing her of trying to detract attention from her struggle with sobriety. It was an incredibly selfish and desperate stunt."

Kim seemed extremely saddened by Lisa's remark to her during taping that the producers made sure to keep them apart during filming breaks.

"Kim was visibly upset and shaking during filming breaks of the reunion because Lisa was just staring at her," the insider explained. "There was a lot of tension on the set between the two of them, and producers kept them apart for a reason."

The reunion will air at the end of March.

Image courtesy Facebook/"RHOBH"