Scheana Marie came to the defense of Katie Maloney on Monday night after she was cruelly fat-shamed by Kevin Lee, a party planner in Beverly Hills.

Following last night's new episode of the sixth season of Vanderpump Rules, Scheana Marie took to her Twitter page and defended her on-screen nemesis, telling fans that while she and Maloney have butted heads for years, Lee's behavior was unacceptable.

"Just want to say, @MusicKillsKate despite our differences we've had, you are gorgeous and the comments made about your weight that night made me cringe," she tweeted. "You are a beautiful woman. Have fun on @BravoWWHL tonight!!"

Lee made a series of mean comments to Maloney during Monday's show, including a comment stating that she should be working on her weight. He even said that she seemed out of control with her size. Right away, Maloney went to her boss and friend Lisa Vanderpump for comfort.

In response to Scheana Marie's post, a number of Twitter users weighed in on the events of last night's show and took aim at Kevin Lee.

"Really! Who does Kevin Lee think he is? It's not like he's one of Katie's best friends....even then it's wrong to say crap like that," one person said.

"Fat shamming is not cool!!! Watching this really struck a nerve!!!" another fan wrote.

A third commenter even called for a boycott.

"Could not BELIEVE IT, when I heard it...he’s classless...#boycottkevinlee," they tweeted.

In other Scheana Marie news, the reality star has been single for the past several months due to what she claims were hurtful comments made by Maloney and others about her relationship with Robert Parks-Valletta. As Scheana Marie explained to Life & Style magazine last month, Maloney and the other women of the show, including Stassi Schroeder and Kristen Doute, accused Parks-Valletta of cheating on her during season 6. Midway through production, they called it quits.

Since Scheana Marie and Parks-Valletta ended their relationship in August of last year, they have been seen together just a handful of times.

To see more of Scheana Marie, Katie Maloney, and their co-stars including James Kennedy, Lala Kent, Lisa Vanderpump, Robert Parks Valeltta, Tom Sandoval, Tom Schwartz, Ariana Madix, and Stassi Schroeder, don't miss new episodes of Vanderpump Rules season 6 on Monday nights at 9 p.m. on Bravo TV.