Rob Kardashian Weight, Behavior Sparks Concern Among Friends

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Rob Kardashian is trying to start over.

The reality star has deleted nearly all his Twitter message, along with his Instagram page, and is ready to lose weight.

The moves come just days after Rob shockingly peaced out of his sister's wedding weekend, catching a flight to Los Angeles Saturday morning... before Kim Kardashian said "I Do" for the third time. 

Some sort of issue allegedly arose over Rob refusing to be included in any family portraits due to his low self-esteem.

"Friends at the wedding expressed serious concern for him," a close family pal, who attended the Kimye festivities, tells People. "When I saw him, it looked like something was very wrong."

Rob's struggle with a ballooning figure has been making headlines for months now.

He recently shot down talk that he attended rehab to deal with depression as a result of this weight gain, but Rob also acknowledged on Twitter last week that he's well aware of his girth.

"I know I'm fat," he actually wrote, asking haters to stop hating.

But this insider says he's "not sure" Rob's behavior and downtrodden moods are "solely related to weight gain," while also making it clear to the star that "his friends and family are rooting for him."

No member of the family has commented on the situation since the wedding, though Kardashian recently reached out to Lamar Odom for advice. And just for friendship, we'd imagine.

These two have always been close, so let's hope Odom can help turn Rob's frown upside down.