“RHOBH”'s Sutton Stracke Implies Kyle Richards' Estranged Husband Mauricio Cheated on Her: 'The Unspoken Thing'

Sutton Stracke is putting Kyle Richards in the hot seat.

The Real Housewives of Beverly Hills star, 53, called out her costar Kyle, 56, for her estranged husband Mauricio Umanksy's alleged history of infidelity while discussing their ongoing separation in a preview of the hit Bravo show.

"Mo told me that PK was having a really hard time and he was really down. I said, 'I can't be friends with him,'" Kyle explained, referring to her relationship with Dorit Kemsley's estranged husband, Paul "PK" Kemsley. In last week's episode, Dorit and Kyle had a blow-up fight after Dorit learned that Kyle had been texting PK while they were going through a tough time in their relationship.

Related: Sutton Stracke Urges Kyle Richards to 'Get a Grip' and File for Divorce from Mauricio to Keep Her Assets: 'Run, Don't Walk'

Sutton and Garcelle Beauvais admitted they would also have a problem with their friends communicating with their exes, though Kyle told Garcelle her divorce was a "very different situation."

"Yes, but I feel like in a way it's similar to Dorit. Not infidelity, but being angry at one another,'" Garcelle replies, to which Sutton points out to Kyle, "But you also had infidelity. Let's not forget that part."

Kyle appeared confused and denied ever mentioning that Mauricio had cheated on her despite her previous comments. During the season 13 reunion of RHOBH, Kyle shocked viewers when she revealed that there had been an event that made her lose her trust.

Related: Why Kyle Richards and Mauricio Umansky Haven't Had the 'Hard' Divorce Conversation 1 Year After Their Separation

"This is definitely the unspoken thing," Garcelle said in a confessional. "No one brings that up. I mean, listen, we've been hearing rumors for years that either Mo has stepped out or is doing this or is doing that. Nobody has confirmation, but it's been all over."

Kyle redirected Sutton's question and asked if she was referring to her previous claims that she and Mauricio had fought over the flirty comments he had left on other women's profiles.

"That's different. I think it's different," she said.

PEOPLE has reached out to Mauricio's rep for comment.

Related: Kyle Richards and Mauricio Umansky's Relationship Timeline

In a conversation with the cameras, Sutton confessed that she wasn't asking about the Instagram comments, adding, "I always have a problem with things slipping out of my mouth."

PEOPLE confirmed in July that Kyle and Mauricio were separating after 27 years of marriage. Over the course of their relationship, the couple have fielded cheating allegations which both Kyle and Mauricio have denied.

At last season's reunion, Kyle admitted that years of rumors of her husband's alleged infidelity began to "chip away” at her.

“He would say to me, you know, we can't care. We know the truth and you know,” she said of headlines. “Of course, there's always that little voice in my head like, ‘What if this is true?’ People would say these things all the time.”

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

The Real Housewives of Beverly Hills airs Tuesdays at 8 p.m. ET on Bravo.

Read the original article on People