In the clip, shared on US Weekly, the lovebirds argue over who's blowing up Chyna's phone. "Who's this hitting your phone over and over?" Rob asks. "And your password's not the same as it was." Chyna responds that Rob doesn't trust her ("Why do you care?" What do you think I'm doing?") and he gets very defensive. "It's not about that — it's just that I don't get why you even care if I go through your phone.… I mean, don't you think that's shady?"
In a confessional moment, Chyna explains that she isn't being shady because she literally has no time to be. "I don't even understand why Rob would even think that I'm doing anything wrong," she says. "I'm four months pregnant, I have two businesses that I'm running, I'm with King, and I literally don't leave the house. So what could I possibly be doing?"
Watch the clip below and you be the judge:
Rob & Chyna premieres on September 11th on E!
[Photo: Getty Images]