Rob Kardashian
Rob Kardashian poses before the opening of the Kardashian Khaos store in Las Vegas in 2011. Kris Jenner is reportedly demanding her 28-year-old son apologize to sister Kim Kardashian after comparing her to the villain from "Gone Girl" on Instagram. Reuters

Kris Jenner is not happy with son Rob Kardashian after the disturbing comparison he made in an Instagram post on Sunday. The 28-year-old posted a screen grab from the film, “Gone Girl,” comparing sister Kim Kardashian to the film’s villain, Amy (Rosamund Pike). Neither Kim nor her other famous siblings have responded to Rob’s jab. Hollywood Life is now reporting that momager Kris is demanding her son apologize. Unfortunately, it doesn’t appear Rob and Kim will be making up anytime soon.

“Instead of seeing Rob’s Instagram as a cry for help, Kris is p----d that Rob is taking to social media to bash the family,” a source close to the family said. “She has told Rob to apologize to Kim, but he has refused, which is only getting Kris more heated. Kris really doesn’t know how to deal with the men in her life, and she can add Rob and his troubles to the list, choosing to be upset over what he has done rather than getting him even more help.”

For those unfamiliar with "Gone Girl," the movie is about a wife who seeks revenge against her husband after she discovers him cheating. She ultimately sets him up for her murder, and kills someone herself in order to get her story right. Rob posted a screenshot of the movie where Amy returns home covered in blood after killing the man she accused of kidnapping her. "This is my sister Kim," Rob captioned the photo. "The b---- from Gone Girl ..."

Although Rob has managed to stay out of the public eye recently, his struggle with depression and weight gain has been highly publicized. Khloé Kardashian says her brother has developed “a kind of social anxiety” in the last year. Regardless of his struggles, the 30-year-old says she “will always be his No. 1 supporter.”

“He’s definitely not at his happiest place that he once was, and I know he can get to that happy place and he will,” she told WonderWall during a party at 1 OAK Las Vegas. “We all kind of get to a place where you don’t know where to go in life or whatever, so I think it’s important for him to know that he always has people to lean on and it’s not unnatural for people to not know even where to begin. It’s a growing process.”

While Khloé has been quick to rush to her brother’s side from the beginning, Kim, 34, was much harder on him. During a previous season of E!’s hit series “Keeping up with the Kardashians,” she suggested on multiple occasions that Rob needed tough love.

“We’ve all been here to offer him help, but he won’t take it, so I don’t have sympathy,” she said after Rob bailed, once again, on a family vacation.

Rob was believed to be working toward living a healthier lifestyle after receiving bad news about the effects of his weight gain on his body. During an episode of the family’s reality show, Rob visited his doctor at the request of his mother. After the results of his blood work suggested his liver was not functioning properly and he was at a risk for developing diabetes, Kris paired Rob up with a nutritionist as well as the family’s trainer, Gunnar Peterson.

It is unclear whether Rob will appear in Season 10 of “KUWTK,” which premiered March 15.