scheana marie's relationship with Robert Parks-Valletta is starting to show signs of tension. In a just-released sneak peek at next Monday's episode of "Vanderpump Rules," the couple is seen FaceTiming one another during her trip to Playa del Carmen, Mexico, where she is supposed to be enjoying time with her co-stars.

"I was telling Lala I'm trying to be present in this trip," Scheana explains to her then-boyfriend. As fans of "Vanderpump Rules" have seen, Scheana spends a lot of time on her phone and at one point, Jax Taylor made fun of her for "snapping" every possible moment during his and Brittany Cartwright's house-warming party.

After learning Scheana would like to focus on her fun trip, rather than other things, Robert Parks-Valletta immediately had a suggestion for the reality star. "I would be very proud of you if you turned your phone off," he told her. However, she doesn't take too kindly to the suggestion and immediately feels like he doesn't want to communicate with her while she's away.

"So are you saying you don't want to talk to me for the rest of my trip?" Scheana Marie asks.

Scheana Marie split from Robert Parks-Valletta during 'Vanderpump Rules' season six

When the sixth season of the reality show first began, Scheana couldn't stop talking about how she and Parks-Valletta were meant to be and would one day get married. She even said that she looked forward to the moment [VIDEO] she would be able to have a wedding in July of last year -- after her split from first husband Mike Shay was finalized.

Unfortunately, Scheana didn't quite get there with Rob and after weeks of seemingly showing the world that she was far more into her relationship than her now-ex-boyfriend, she and Parks-Valletta called it quits. While the couple is still seen on the show, they broke up back in August of last year, just six months into their short-lived romance.

Jax Taylor was vocal about his thoughts on Scheana Marie's romance

After attending a cast trip [VIDEO] to Big Bear with Robert Parks-Valletta during filming, Taylor wondered why the actor had suggested he wasn't yet in love with Scheana. He even brought the concern to his co-stars but when Scheana found out what he was saying, she told Kristen Doute that her then-boyfriend was in love with her and said he "f****** adores me." Weeks later, the couple called it quits.

"Vanderpump Rules" season six airs on Monday nights at 9 p.m. on Bravo TV.