Rob Kardashian was not in attendance at Kylie Jenner's birthday party this past weekend.

Rob Kardashian Is Going Through A 'Hard Time,' Being Held 'Captive' By Sister Khloe?

Although many members of the family made appearances at Bootsy Bellows on August 7, the often silent former Keeping Up With The Kardashians star chose to steer clear of the highly publicized event, in which Tyga presented Jenner with a Ferrari.

“Rob refused to do anything for Kylie’s birthday,” a family source told Radar Online on Tuesday. “He is invited to everything and he refuses to come to anything.”

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According to the insider, Kardashian has been ignoring the majority of phone calls and texts from his family members.

“He’s just ignoring everyone. His mom, his sisters. He just doesn’t care,” the source said. Khloe can’t even “get Rob to leave the house. He just hides out there all the time and doesn’t care if he leaves or even gets dressed.”

“Rob is really making his sisters and even his mom mad,” the source continued. “Kim still think he’s really being selfish and she want him to do things with them, not shut them out completely. They don’t know what to do anymore.”

On Instagram, meanwhile, Kardashian shared a post with a Paul Newman photo.

 

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