Done Keeping Up! Rob Kardashian 'Wants Out' Of Family & Their Drama

Rob Kardashian is giving himself the gift of freedom from his family this year! RadarOnline.com has exclusively learned that Kardashian "couldn't care less" about spending time with his famous siblings for Christmas and beyond.

"Rob's insisting he's done with the family for good," an insider tells Radar. "He's changed his number so many times they've stopped trying to contact him."

Kardashian was the only no-show at his sister Khloe's Thanksgiving Day luncheon, and his former closest sibling and friend is now persona non grata in his life.

"The last conversation he had with Khloe was to rip into her over her treatment of Lamar," revealed the insider. "He's vowed to not join them at Christmas either."

While 28-year-old Kardashian does speak to his mom on the rare occasion, "He wants out of the family and has even threatened to sue them if they mention him on Keeping Up with the Kardashians," said the insider.

"He's over everyone and he really just wants to be left alone to focus on himself."