Rob Kardashian has been on the tip of pop culture fans' tongues after the only brother on “Keeping Up with the Kardashians” failed to show up to Kim and Kanye West’s European nuptials. Rumors swirled that the 27-year-old scion ditched the lavish Florentine wedding because he was embarrassed about his weight, and various news sources have reported about Rob since his absence from his big sister’s third wedding.

Us Weekly talked to an insider who said family friend Jonathan Cheban sat down with Rob’s ex-girlfriend, former Cheetah Girl Adrienne Bailon, and urged her to reach out to the troubled reality TV star.

"Their conversation was intense and serious. Jonathan was telling Adrienne she should reach out to Rob. He seemed concerned for him," the source said. "Adrienne looked really sad -– she was shaking her head, as if she didn't know what to do or say about the whole thing."

But not everyone is concerned about Rob. On Tuesday his half-sisters Kendall and Kylie Jenner told ABC's "Good Morning America," as reported by Us Weekly, that he was just fine. "He's doing really well," Kendall responded when asked.

Even though he’s apparently “well,” there is one person who is probably infuriated with him: Kim. According to The Gossip Table, the queen of reality, 33, is also worried about her little brother, but she also has plenty of things she needs to address with him. added via Hollywood Life: “This is not going to be a happy reunion, She has plenty to say to Rob, but she wants to do it in person.”

Some have wondered if this is all a stunt for “KUWTK.” Rob has remained relatively silent on social media and after unfollowing on Twitter nearly all of his family members the past few days except for his younger half-sisters, he added his Kardashian sisters and mother Kris Jenner on Tuesday.