‘Married to Medicine’ First Look: Mariah, Quad and Simone Explode on Each Other -- Watch! (Exclusive)

Quad Webb-Lunceford on 'Married to Medicine.'

Quad and her so-called friends are at each other’s throats in this sneak peek at Friday’s all-new episode of the Bravo hit.

Mariah Huq is tired of the Married to Medicine crew’s so-called double standard.

In ET’s exclusive first look at Friday’s episodes, Mariah and the ladies are on a boat. But, instead of enjoying their time in the sun, Mariah brings a big ol’ storm cloud to the day by calling out how everyone treats her, versus her former friend, Quad Webb-Lunceford.

“I’m fine, they don’t mind me being around, long as I just don’t breathe,” she remarks.

“Honestly, it’s not that,” Quad interjects. “And what I want to say for the record is, if someone calls you out on your s**t, or anyone here, it doesn’t mean that you’re under attack.”

“But no one calls you out on yours!” Mariah interjects. “Let’s talk about that. Everybody feels like they gotta walk on eggshells with you, ‘cause you the youngest and they don’t want to hurt your feelings. And that’s the truth. Ask ‘em.”

“I can’t understand why the ladies won’t let anything slide with me,” Mariah adds in a confessional. “But they let Quad do the Cha-Cha Slide, the Electric Slide, she slide all around and nobody say anything.”

“We have taken it a lot easier on Quad than we have on each other, ‘cause we know that she’s sensitive,” Simone Whitmore offers.

“But that’s bulls**t,” Mariah responds, sending the boat into chaotic overdrive -- especially Quad, who starts defending herself, albeit somewhat incoherently.

“It’s not bulls**t, Quad,” Simone tells her.

“I have never got a break in this group!” Quad fires back, which pushes Simone to jump up and get in Quad’s face to scream at her. You’ll have to tune into Married to Medicine on Friday at 9 p.m. ET on Bravo to see where the screaming match goes, but we’re guessing it doesn’t lead to a reconciliation for Quad and Mariah. Last season, she told ET it just won’t happen.

“Unfortunately, guys, I'm sorry, it's probably never going to be another Quad and Mariah show,” she admitted. “It's probably never going to be another Quad and Mariah anything. But again, I'm praying for her. I wish that she's happy and healthy and prosperous, and I think that's giving her more than enough.”

For more from Quad and on the show, check out the video and links below.