After the drama that went down between the ladies during their getaway to Puerto Rico, we can’t exactly blame them for taking a break from each other once they got back to LA. But when the Real Housewives of Beverly Hills returns for the Season 4 finale, the ladies will be called together yet again for a swanky party at the Beverly Hilton Hotel.

Unfortunately, despite the glamorous guest list and fabulous location, things are about to take a turn for the absolute worst. (And here we thought they couldn’t get any more dramatic!)

Brandi Glanville decides to tell her side of the magazine story to Carlton Gebbia, but Carlton’s response has Brandi wondering if she’s been drinking Lisa’s Kool-Aid. “Why are you rolling your eyes and seem annoyed with me?” Brandi asks. “You’re gonna be mad for Lisa, [but] you have no idea what happened. She’s in your ear.”

Later in the evening, Yolanda Foster becomes the second of the ladies to lash out against Ken Todd, when he inserts himself into an argument that they’re having with Lisa. “Can you please stay out of this?” she asks. “We’re having a girls’ talk and again you’re walking into it. I don’t appreciate you being rude.”

Things escalate even further when Ken brings up Yolanda’s husband’s, David. “You think my husband wants to hang with somebody like you who attacks women in public?” she responds. “Are you kidding me?!”

Watch this sneak peek from the Beverly Hills Season 4 finale (airing on Monday, March 10  at 9pm), then let us know your thoughts in the comments below!