There appears to be a lot of drama going down amongst the Kardashian-Jenner family after Rob Kardashian went public with his relationship with Blac Chyna.

As we previously reported, Blac Chyna first posted a photo of herself in an embrace with Kardashian and wrote “The beginning.”

The Kardashian sisters’ connection to Blac Chyna is complicated. She’s the ex-fiance of Jenner’s boyfriend, Tyga, and they share a son together. She’s also the best friend of Amber Rose (Kanye West's ex), who Khloe got into a Twitter feud with last year. Kim Kardashian was once good friends with her, before Jenner and Tyga got together.

Jenner has reportedly responded to her brother’s new flame by calling him the devil in an Instagram post.

"She feels super betrayed and can't understand why someone in her own family would stab her in the back like that," a source told People.

Kris Jenner even hinted at feeling betrayed, tweeting she had a "challenging day" on Monday.