We’re not sure what to make of this one, but it appears Robert Kardashian might have some issues with sister Kim, after he compared her to Rosamund Pike’s Gone Girl character. Robert posted a picture of a bloodied Amy from the 2014 thriller on Sunday, along with a caption comparing her to Kim.

Robert KardashianRobert Kardashian has seemingly lashed out at his sister on Instagram

“My sister kim, the b---- from Gone Girl,,,” the post was captioned on the verified Instagram account. At the time of writing, Rob’s account on the social media site has been cleared of all other pictures leaving just the Gone Girl still.

If you don’t already know (and massive SPOILER ALERT), in Gone Girl the character of Amy fakes her own death, frames her husband for murder and kills her ex boyfriend, so she’s not really the most flattering person to be compared to.

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On Saturday Rob’s other sister Khloe was reported as telling wonderwall.com that she believes her younger brother has “social anxiety”. “I just feel, especially over the last year, Rob has become very introverted and has a kind of social anxiety,” Khloe said.

“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.”

This is my sister kim , the bitch from Gone Girl,,,

A photo posted by ROBERT KARDASHIAN (@robkardashian) on

Rob’s recent problems were chronicled during season nine of ‘Keeping Up With The Kardashians’, which culminated in him deciding not to attend Kim’s lavish Paris wedding to Kanye West.

But earlier in the week it had seemed all was well in the Kardashian clan, as Rob celebrated his 28th birthday. “I love you so much and can’t wait to share so many more memories with you!” Kim wrote on Instagram on Tuesday.

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While Khloe added on her page, ‘Happy birthday @robkardashian!!!!!! Never will I ever meet another man as great as you! I know this is the year where you will find your happiness again!

"I will be right by your side, holding your hand, every step of the way!!! I adore you my one and only brother!! Happy Happy Happy birthday!!’ Khloe added.