Rob Kardashian has been raising eyebrows recently, especially with his Instagram photo that compared his sister Kim Kardashian to the "bitch from Gone Girl," and his family has certainly noticed.

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"He's sad, he's bitter, he's single. He is very depressed and has been [for a while]," a source told People.

"He is very against therapy and any kind of rehab," added a Keeping Up with the Kardashians production source. "But his family will continue to push for him to get help until he does."

Rob has struggled with his weight for years and often comes across as the outcast on his family's E! reality show.

Rob has had girl troubles play out in public as well as outbursts at his mother Kris Jenner for being controlling and shallow. He skipped out on Kim's May wedding to Kanye West and was even photographed last year with paraphernalia associated with the cough syrup and soda blend known as "sizzurp," according to People.

"It's really hard for him that his sisters are so public and he looks like the shut-in," the source said of Rob, whose sock line never remotely measured up to his sisters' business successes.

Rob's sister Khloe Kardashian, who's always appeared to be the closest sibling to Rob, just recently pointed out that he's "not at his happiest place" right now.

"The attitude has always been that when Rob gets his act together, starts working out and loses weight, everything will be good and he will be happy," the KUWTK production source explained. "But behind the weight gain is this very unhealthy mental state that he keeps struggling with."


About The Author: Elizabeth Kwiatkowski
Elizabeth Kwiatkowski is Associate Editor of Reality TV World and has been covering the reality TV genre for more than a decade.