Kim Kardashian Explains Rob's Infamous Instagram Post Calling Her the 'B**ch From Gone Girl'

Kim Kardashian isn't always a fan of her brother Rob Kardashian's sense of humor.

On Sunday's Keeping Up With the Kardashians, the 35-year-old reality star addressed Rob's infamous Instagram post last March that read, "This is my sister Kim, the b**ch from Gone Girl..." Alongside the caption, Rob posted a picture of actress Rosamund Pike -- who played the manipulative and psychotic Amy in Gone Girl -- covered in blood.

While discussing Rob's Instagram posts with 31-year-old Khloe Kardashian, Kim pointed out that Khloe gets treated better by their younger brother.

WATCH: Rob Kardashian Posts Rare Instagram for Kylie Jenner's Lip Kit, but Not Kim Kardashian's New Baby

"You get purple hair and I get the girl from Gone Girl!" Kim said.

Although, Khloe didn't see the problem.

"I loved when Rob called you the girl from Gone Girl," Khloe laughed.

When Twitter user @ZOHALxo later tweeted Kim on Sunday, writing, "LOL! We still need an explanation for that bc I don't see any comparisons!," Kim claimed that Rob posted the harsh Instagram -- which he eventually deleted -- out of revenge.

"@ZOHALxo he thinks he's being funny," Kim tweeted back. "I got mad at him and he posted that to get me back."

Of course, this isn't the first time Rob and Kim have revealed the ups and downs of their relationship. Rob skipped out on Kim's wedding to Kanye West in Florence, Italy, in May 2014, and last April, Kim showed her tough love approach when it comes to dealing with Rob. According to their mother, Kris Jenner, Rob has been struggling with depression and weight gain for over a year.

"Everyone licks Rob's ass and does whatever he says," Kim bluntly told Kris during an episode of Keeping Up With the Kardashians last April. "It's just like, at some point you just have to give it up. We all make his life so easy."

"I'm the only one that's really tough with him so he probably avoids me the most," she also said.

WATCH: Kim Kardashian Teases Rob Behind His Back for His Weight Gain and Rita Ora Tattoo

However, Khloe told ET earlier this month that Rob is now "good," after being diagnosed with diabetes in December.

"My only hope is that maybe this health scare is a wake-up call and he will adjust his life and be more serious about certain things in his life," Khloe said during our visit to the set of her new talk show, Kocktails With Khloe.

Watch below:

EXCLUSIVE: Khloe Kardashian Wants Rob to Get 'Serious', Hopes Lamar Will Leave Hospital Soon

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