Jen Shah is questioning Meredith Marks for hiring a private investigator. On Sunday night's episode of _The Real Housewives of Salt Lake City_, the ladies gathered together for a trip

to Zion, which had been organized by each of their spouses as a Mother's Day surprise. After a bumpy start to the trip — which saw Jen get into a heated and physical altercation with

Lisa Barlow — the group also experienced some setbacks at a spiritual healing ceremony organized by Whitney Rose. Following the ceremony, the ladies arrived back at their villa, where

Whitney said during dinner that she wanted the group to "come forward with resentments, grudges [and] things that we're holding onto with each other." As she and the other

the ladies were rejoined with one another, Jen saw an opportunity to question Meredith about issues that she has with her. "Well, since we're all being honest right now, I would

like to know, Meredith, why you hired a private investigator to research about me?" she asked. In response, Meredith fired back, "I never hired a private investigator to

investigate you. I hired a private investigator to investigate why my family was receiving threats." Noting that she submitted "every single one you to be investigated,"

Meredith then pointed to Jen and added, "Not you. So let's clarify that." _WANT TO GET THE BIGGEST STORIES FROM_ PEOPLE _EVERY WEEKDAY? __SUBSCRIBE TO OUR NEW PODCAST__,_

PEOPLE EVERY DAY, _TO GET THE ESSENTIAL CELEBRITY, ENTERTAINMENT AND HUMAN INTEREST NEWS STORIES MONDAY THROUGH FRIDAY._ After hearing what Meredith said, Jen turned to Jennie Nguyen and

questioned her about why she had said that Meredith hired a private investigator to look into her. As Jennie and Jen went back and forth, Jennie said in her confessional that she was mad at

Jen for bringing up the private investigator. "It's so upsetting to me because I told her the truth, and yet she turned it on me, which is unbelievable," Jennie said. Whitney

then asked Meredith for clarification on why the private investigator was hired, to which Meredith said it was due to "threats" against her family. But, when Jen came under the

assumption that the group believed her to be the culprit of the threats, Meredith replied: "I didn't say that ... [but] the investigator did say with ninety percent certainty he

thought it was you." RELATED VIDEO: MEREDITH MARKS THINKS JEN SHAH DID THE BEST SHE COULD TO TAKE ACCOUNTABILITY FOR HER REMARKS Jen, shocked by that response, questioned Meredith,

before the jewelry designer said, "You've been awful to my family, just be honest." Jen then fired back and called out Meredith's son, Brooks Marks. "He said he saw

my vagina," Jen exclaimed, which Meredith denied. Jen then rose from her seat at the table and began yelling at Meredith, hinting that she knows something that Meredith doesn't

want to get out. "Do you wanna know what you've done? You don't want me to tell everyone, right?" she asked. Jen then signaled to Meredith that if she had any involvement

in her prior arrest there would be trouble. Meredith, however, said she had no involvement, as she removed herself from the scene. "Jen, I would never do that. I'm not revolting

like you," she responded. _The Real Housewives of Salt Lake City_ airs Sundays at 9 p.m. ET on Bravo.