Reality TV star Rob Kardashian was auspicious by his absence at half-sister Kylie Jenner's 18th birthday party, where all of her family was present.
Rob, 28, refused to attend the bash, even though invited because he "just does not care about anyone," reported Radar Online.
"He is invited to everything and he refuses to come to anything," a source close to the famous family said.
The birthday celebrations included a family dinner on August 7 and night party at Bootsy Bellows two days later, which were attended by their famous family members.
Rob apparently refused to leave Khloe Kardashian's Calabasas mansion.
"Rob refused to do anything for Kylie's birthday. He is invited to everything and he refuses to come to anything."
Rob, reportedly, neither accepted any phone calls nor replied text messages from anyone in his family. "He's just ignoring everyone. His mom, his sisters. He just doesn't care," the source explained.
Khloe, who is currently living with Rob, wasn't able to get him "leave the house," the source continued. "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 added. "Kim [Kardashian] still think he's really being selfish and she want him to do things with them, not shut them out completely.
