Keeping Up With The Kardashians Khloe Kardashian hinted at mental issues for her brother Rob Kardashian just before he dissed their sister Kim Kardashian on Instagram.

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Khloe shed a little light on Rob's outrageous and shocking post that he shared with fans on the photo site Sunday.

She opened up to Wonder Wall Saturday and said, "I just feel, especially over the last year, Rob has become very introverted and has a kind of social anxiety. 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."

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Rob seemed to go on a downfall after he gained more than 60 pounds in one year. While he was still on Keeping Up With The Kardashians, he attempted to make lifestyle changes to lose the weight, but it doesn't seem like that has helped just yet. Word is his weight gain and new appearance has caused him to be anti-social with his famous family. He has yet to make an appearance on the new season of the family's hit E! series. He also opted out of attending Kim's luxurious wedding to rapper Kanye West last May. Kim confirmed that it was because he didn't want to have to be in any pictures.

Khloe continued and said, "We all kind of get to a place where you don' 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...I will always be his number one supporter."

Her comments came a day before Rob emptied out his Instagram and left one post that threw shade at Kim.

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

A photo posted by ROBERT KARDASHIAN (@robkardashian) on Mar 22, 2015 at 10:38am PDT