A lot has happened in the six days since news first broke that Rob Kardashian and Blac Chyna have been seeing each other romantically — and his sister Khloé is not having it.

“Rob is living with Blac now that Khloé kicked him out after finding out about him and Blac,” a source close to Rob tells Us Weekly. “Khloé feels majorly betrayed by Rob after she always stuck up for him. She feels like this is a major blow to the family. Nobody in the family likes it.”

The insider adds that Rob, 28, wasn’t trying to specifically get back at younger sister Kylie Jenner, despite the complicated web this new romance weaves. (Chyna was previously engaged to Jenner’s current beau, Tyga, and the pair share one son, King Cairo Stevenson, 3. After Tyga and Chyna split in 2014, the 27-year-old makeup artist dissed then-17-year-old Jenner on social media.)

“Kylie says Rob stabbed her in the back,” the source explains. “This is not about Kylie for Rob, though. He was always cool with Kendall and Kylie. For him this is about the whole family and his way at getting back at them.”

As Us previously reported, the family is torn over how to deal with Rob’s new relationship.

“The family is in a bind trying to be supportive of Rob’s life while being sensitive of Kylie’s relationship with Tyga,” another family source told Us.

On Monday, January 25, Chyna caused a stir on social media when she shared a photo of herself in a romantic embrace with Rob.

“The beginning,” she captioned the black-and-white photo.

None of the Kardashian-Jenner clan have spoken out about the burgeoning love story, though Khloé, 31, has made a few references to betrayal that fans have interpreted as a warning to Rob.

“Never go against THE Family,” she captioned an Instagram on Wednesday.

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