The 29-year-old television personality has gushed about his three-month-old child - who he has with Blac Chyna - in a sweet heartfelt goodbye post on social media, where he admitted he is the most happiest he has "ever" been in his life when he is around the tiny tot, and he is sad he has to leave her because he will miss her "so much".
Alongside a picture of the Arthur George sock designer with Dream, which was shared on his Instagram account, he wrote: "Saying bye to my beautiful baby girl . she is smiling at me. U see how she looking at her daddy I literally can't get enough of this girl,,, I never felt a love or happiness like this ever in my life and she makes me so happy ,,,about to miss her so much Love You baby Dream (sic)."
And the 'Keeping Up With the Kardashians' star has touched the hearts of everyone, including his older sister Kourtney Kardashian.
The 37-year-old television personality commented on post, and wrote: "That's beautiful Bobby (sic)."
Rob's post comes a few weeks after the reality star had reportedly moved out of his home with his 28-year-old partner.
And it is believed the couple have gone their separate ways to allow Rob to focus on himself, his design work with his fashion label, and his baby.
Speaking previously to E! News, a source said: "Rob is focusing more on himself, the baby and work. He's been focusing on his sock line more."
And the star has proved he is besotted with Dream as he has credited her as his "best friend" and is regularly declaring his love to her.
Speaking previously about his brood, he said: "She is the best and I love her so much and I thank God every day for her because she is the best and she is my best friend."