Things are getting heated in Salt Lake City!
The two reality stars — who were heading out for a girls trip to Zion National Park with more of their RHOSLC costars — had to be separated by producers after their verbal fight began to escalate out of control.
It all began when Shah, 47, learned that Meredith Marks — who was absent from the outing — hired a private investigator to look into her. Shah quickly became angry at her apparent friends' responses to the news, especially the reaction from Barlow, who previously slammed Shah for using an investigator in the past.
"How come when we went to Vegas, Lisa, you specifically came to me and said, 'I heard that you are researching all of us,' and you're digging into it," Shah asked in the episode, per People. "And now your best friend of 10 years hires a private investigator to look into me and no one says anything?"
As Shah began shouting and taking out her anger on Barlow, the 46-year-old insisted she shouldn't be held accountable for Marks' actions.
"I am not responsible for anything Meredith ever says and does," Barlow insisted, per Daily Mail, explaining that she cares about both Shah and Marks, 49.
"Lisa you can't do that though. You sign up, or you don't sign up," Shah reportedly replied, adding: "You treat Meredith differently than you treat me and everyone else. That's the f***ing truth."
Meanwhile, Barlow tried defending her actions, telling the group of women, "You guys have to understand, I've been friends with [Meredith] for 10 years."
"Good! She's a piece of s***. So sign up for her," Shah reportedly countered as she began yelling and moving closer to Barlow.
"Get out of my f***ing way. Get out of my f***ing way," Barlow screamed, per the outlet, while pushing Shah away from her. "Push me one more f***ing time!," Shah fired back before producers reportedly stepped in to separate the reality stars.
The episode ended with a "To be continued," message across the screen to tease next week's episode.
The Real Housewives of Salt Lake City airs Sundays at 9 p.m. ET.