WATCH: That Time Kourtney Kardashian Almost Went Off on Blac Chyna

Kourtney Kardashian was ready to fight Blac Chyna after seeing a ChyMoji of a Kylie Jenner look-alike getting slapped, according to the mom-of-three.

On an upcoming episode of Keeping Up with the Kardashians, Kourtney says she wanted to put Chyna on blast for allegedly approving an insulting emoji on her app. However, Kylie stops her last minute because yelling at a pregnant woman might not be the best thing to do as a decent human being.

“I was just, like, in a mood,” she tells her makeup artist. “I was going to call Chyna and Kylie was like, ‘No, just call Rob [Kardashian]. Like, it’s two-faced to call Chyna.’ I don’t want to yell at a pregnant person.”

According to Kardashian, she called her younger brother up to give her a piece of her mind. Unluckily for her, Rob isn’t going to back down so easily when it comes to defending his fiancée.

“I went off on him yesterday,” Kourtney recalls. “He’s like, ‘I’m going to go on the red carpet tonight, and I’m going to tell everybody how I have the worst, most unsupportive, disgusting family.’ Like, ridiculous. But I think it’s stupid to take it there.”

Kourtney also adds, “This was the first time that made me question Chyna’s intentions.”

Dramaaa! Watch how Khloé Kardashian handles the news — above!