Kim Richards' struggle with alcoholism stirs up even more trouble for the ladies of "the Real Housewives of Beverly Hills" during their cast trip to the Hamptons. After revealing to Bethenny Frankel that she was fed up with hearing about her sister's dealings, Kyle Richards reaches her boiling point in episode 8.

The episode kicks off with the cast still on vacation in New York's hottest spot for the wealthy. Kyle, 46, invites the group to attend the VIP opening of her pop-up shop in Southampton, all the while crossing her fingers that Kim, 52, doesn't come up. Sure enough Lisa Rinna, who famously butted heads with her in Season 5, begins discussing the drama with Bethenny, 45. The former soap opera star claims she feels somewhat responsible for Kim's return to the bottle, which the "Real Housewives of New York" star understands. Kyle eventually finds her way over to the group, which has grown since the start of the conversation. Bethenny catches Kyle up to speed and she immediately gets to work trying to steer the conversation in another direction. 

The ladies return back to their vacation home from the event where the drama continues. Eileen Davidson confronts Lisa Vanderpump once more about a pre-existing fight from episode 7. Lisa V, 55, continues to shirk responsibility, claiming Eileen, 56, should have just come to her at the time of the incident. Eileen grows further upset by the situation as the ladies look on in fear. The conversation then shifts, once more, to Kim. Kyle breaks down, revealing to the cast that Kim's state — as well as her relationship with her — keeps her up at night. She then flips the script, asking the ladies what worries them. A majority of the ladies are reluctant to share, specifically Lisa V., but Eileen seizes the opportunity to open up. She tells the "RHOBH" cast she attempted to share this story when the infamous dinner fight in Amsterdam occurred during the previous season but wasn't able to. Eileen breaks down as she admits, for the first time on the show, that she has been the victim of domestic abuse. This shocks the cast, all of whom immediately rally around her. 

During the episode viewers are also introduced to Kathryn Edwards for the first time. It quickly becomes clear why her presence on the show is so controversial — Kathryn, 51, was once married to Marcus Allen, O.J. Simpson's best friend. Prior to his infamous bronco chase it was rumored that Allen, 55, had been having an affair with Simpson's wife though that is merely speculation at this point. Faye Resnick, a close friend of Nicole's, also often appears on the show and, as it turns out, once wrote a book about those rumors.

"RHOBH" airs Tuesdays at 9 p.m. EST on Bravo.