Rob Kardashian is not bouncing back from his breakup with fiancée and baby mama Blac Chyna.
"Rob is a total mess right now," a source close to the 29-year-old father of infant Dream told RadarOnline.com exclusively.
"He is not dieting or exercising. He has even started drinking and smoking pot again."
Last night, Rob's older sister Kim Kardashian, 36, posted a sweet snap on social media of the new dad and baby Dream with 61-year-old momager Kris Jenner.
Although the mother/son duo is all smiles in the Snapchat photo, the insider insisted that it was all for show.
"Rob is doing everything that he can right now to cover up the hurt that Blac Chyna is causing him," the source added. "He is not able to be present for his daughter at all right now."
"It is really sad because he is relying on his family to help raise Dream. Everyone is extremely worried about him."
Despite his pain, the overweight Rob & Chyna star — who has a history of debilitating depression — is still "making excuses" for his cheating ex.
"Rob doesn't care what anyone else thinks, so no one even bothers bringing her up up to him," the source said.
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