Khloe Kardashian's heartfelt message to brother Rob: 'I miss my best friend'

Khloe Kardashian has reached out to her troubled brother Rob Kardashian with a touching Instagram post.

The 29-year-old shared a throwback still from Keeping Up With The Kardashians of the siblings as kids (see above), with the caption: "I miss my best friend @robkardashian."

Rob lived with Khloe and her estranged husband Lamar Odom in their old home and plans to move into her new digs in Calabasas, California.

In fact, Khloe has left her 27-year-old brother in charge of renovations at her new home — Justin Bieber's former mansion — while she films Kardashian spin-off Khloe & Kourtney Take The Hamptons in New York.

"Having my brother oversee my construction at our new house while I'm in NY is a tad scary. I'm way too controlling lol," Khloe tweeted recently.

Rob has more pressing problems than home reno though. He's been struggling with depression, weight and his famous family, after infamously skipping sister Kim Kardashian's wedding to Kanye West's Italian wedding at the last minute.

The sock designer even unfollowed everyone on his Twitter account except for mum Kris Jenner and sister Kylie Jenner… before re-following them all just days later.

"Rob's working on himself," mum Kris Jenner told the US Today Show this week. "He's going to be okay."

See what else Kris revealed about her son and the Kimye wedding:

Check out the latest revealing promo for KUWTK season 10 below.

In pics: The fakest family in showbiz! Kardashian TV secrets exposed

Author: Adam Bub. Approved by Amy Nelmes.