Jax Taylor and Stassi Schroeder's romance may have had a messy end years ago, but nowadays, they are friends.

As Taylor and Schroeder continue to rebuild their friendship on Vanderpump Rules season five, the former couple is preparing to reunite with one another for an episode of Schroeder's Podcast, Straight Up With Stassi, and during next week's new episode of the Bravo series, Lisa Vanderpump expresses concern.

During a sneak peek at the upcoming episode, Cartwright reveals to Vanderpump that Schroeder had approached her to see if she would mind if her boyfriend, Taylor, joined her on her show.

"And you gave your permission," Vanderpump asks.

"Yes," Cartwright responds. "I said it was okay... What would you do if you were in my situation?"

"I would tell somebody to back the f**k off. He's your man, and that's it," Vanderpump replies, citing her successful marriage to husband Ken Todd.

"I just want to see how it goes. I think it will be okay," Cartwright, who recently got a job at SUR Resturant, continues.

"I just don't want anyone walking all over you," Vanderpump concludes.

Taylor and Cartwright began dating one another in early 2015 and moved in together a short time later. 

To see more of Jax Taylor and Brittany Cartwright, tune into new episodes of Vanderpump Rules season five airing every Monday night at 9 p.m. on Bravo TV and check out a sneak peek at next week's new episode below.