The Keeping Up with the Kardahians star wrote that her baby brother is her "Ace"

By Char Adams
December 15, 2015 12:15 PM

Khloé Kardashian has a message for her troubled little brother Rob.

“If only you could see yourself through my eyes!” Khloé, 31, captioned a throwback photo of herself and Rob on Monday night. “I’ll forever be obsessed with you! My one and only! #MyAce.”

The Instagram photo shows Rob, 28, kissing his big sis on the cheek.

Robert and Khloamp#233; Kardashian
Sourece: Instagram

The younger Kardashian has steered cleared of the public eye for more than a year, with the exception of a few Instagram posts.

The Keeping Up with the Kardashians star went into seclusion after battling depression and gaining more than 100 lbs.

However, Instagram posts by the 28-year-old have indicated that he’s getting back into shape.

Kardashian recently opened up to PEOPLE about her brother’s struggles and described him as “such a great guy.”

“I’ve been working on my patience,” Kardashian said. “I’ve been really trying. But I have my moments and I do snap I can’t win life for Rob. I have to wait until [he’s] ready to do it for himself.”