Rob Kardashian's tensions with sister Kim exploded this weekend with his disturbing Instagram post. But sources close to the family tell RadarOnline.com that the feud has been simmering for months — because Rob believes Kim is a "puppet master" controlling his entire family!
As RadarOnline.com reported, Rob posted a photo of Rosamund Pike as Gone Girl psycho killer Amy Dunne, explaining that his sister Kim was "that b*tch."
Though seemingly posted out of the blue, "There was no fight between Kim and Rob that caused him to post that picture," an insider told RadarOnline.com. "Rob just thought it was a funny comparison to Kim because she controls the entire family, and wants the world to think their world is perfect."
"Whenever Kim gets mad at one of her siblings for not showing up at one of her events, or gets into an argument with someone, momager Kris is always dispatched to smooth things over," the source continued. "Kris is the ultimate puppet in Kim's world according to Rob. Kris is at Kim's beck and call, and goes to great lengths to make sure Kim's world is perfect. The times that Kris does spend with her other adult children, Kim gets very jealous, and will find a way to get her mom to do something for her."
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And according to the insider, Rob has had enough.
"Rob just refuses to play by those rules anymore, and Kim has frozen him out of her life," the source said. "If Kim was isolating herself from family and friends, Kris would do whatever it took to end it. Rob just feels that he has been left out in the cold by his family, with the exception of his sister Khloe."
The longstanding feud between Rob and Kim intensified last summer, when Rob abruptly left Kim and Kanye's wedding festivities in France.
Now, according to the source, "The family is just doing their own thing, and no one besides Khloe is truly concerned for Rob. Kourtney is raising three kids and her baby daddy Scott Disick is a mess. Kendall and Kylie are teenagers, and living their own lives. Kim is to busy taking selfies, dyeing her hair, and shopping to care about anything more in her life, even Rob!"