"He's sad, he's bitter, he's single. He is very depressed and has been [for a while]," another insider told the magazine. "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… but behind the weight gain is this very unhealthy mental state that he keeps struggling with."
Rob celebrated his birthday last week and received plenty of love from his fam on Twitter, including his mom. “I fell madly in love with you the moment we met 28 years ago... you are such a joy, with the biggest heart I have ever known.