Rob Kardashian Calls Blac Chyna ‘Psycho’ After Intense Fight About Fast Food in ‘Rob & Chyna’ Sneak Peek

She's not loving it! Blac Chyna and Rob Kardashian get into a heated argument in the car over french fries in Rob & Chyna's Sunday, October 9, episode, as seen in a sneak peek.

The E! unscripted series' preview clip shows Kardashian, 29, driving the pair after picking up fast food, and he isn't pleased when his pregnant fiancée, 28 — who is using her phone at the time — accidentally lets some of the fries fall to the vehicle floor.

"You got to choose one — the food or your phone," the Arthur George sock designer admonishes. "Either/or. Either/or."

The makeup maven is not pleased by his attitude and fires back, "These are my fries! [The ones in the bag] was your fries."

Blac Chyna and Rob Kardashian
Blac Chyna and Rob Kardashian

"He's going to tell me I need to choose between my phone or holding his food?" Chyna grouses to the camera. "I'm not your mother. Like, you better hold your own food, or put it in between your lap. Now you are going to get mad at me over some french fries and start yelling at me. What?"

The Keeping Up With the Kardashians mainstay tells her, "You have serious anger issues! … Why are you yelling, you psycho? What's wrong with you?"

Chyna tells the camera, "Rob likes to pick with me. He loves to see me get hot, and I'm just sick and tired of him playing with me."

A previously released clip from the episode showed the pair bickering over his priorities, with Chyna saying it is "bizarre" that Kardashian — who has struggled with his health and weight in recent years — isn't more focused on "his fitness." This scene was exclusive to Us Weekly.

Watch the tense clip above. Rob & Chyna airs on E! Sundays at 9 p.m. ET. 

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!