The 29-year-old reality star shared a throwback picture of himself cuddling 3-month-old Dream after reportedly ending his engagement with Blac Chyna.
"My favorite pic of us," he captioned the snapshot for his 8.6 million Instagram followers.
Kardashian and Blac Chyna welcomed Dream in November after getting engaged in April.
People reported last week that the couple recently called it quits again after a highly-publicized split in December.
"The wedding plans are off," a source told the magazine. "They are both trying to be mature about it. It was less dramatic this time."
"Chyna is super fed up with Rob and thinks he is way too emotional and depressed. She thinks he has terrible issues," the insider added.
"He is always battling his insecurities and is unstable. It's a major turn-off to her."
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Us Weekly reported the "Rob & Chyna" stars are focused on Dream and "looking forward to co-parenting."
Sources said the breakup feels more final because the pair's interactions since have been "very calm."
"The fighting is over for now," an insider said.
"Rob's family isn't happy or sad about it; they just want Rob to be happy, and that relationship wasn't making either of them happy anymore. Rob and Chyna know and understand that they aren't meant to be together."
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