Lamar Odom is reportedly now doing better after being in a coma following an overdose in Las Vegas recently.

The whole Kardashian family has been offering support to Khloe Kardashian's ex, who is revealed to still be his husband legally as their divorce is reportedly yet to be finalized.

Khloe's momager, Kris Jenner, as well as her sisters have been previously spotted in the hospital where Lamar Odom was confined, with the exception of Rob Kardashian.

Is the only Kardashian brother feeling guilty over not spending time with his brother-in-law this 2015, resulting in the former NBA star to spiral into his vices?

It has been previously reported that Lamar Odom has purportedly offered to guide Rob Kardashian into his road back to fitness this year, as he was planning a 2015 comeback.

According to earlier reports, Lamar Odom also wanted to get back into his NBA physique before 2015 ends, and he was allegedly encouraging Rob Kardashian to take the challenge with him.

"Lamar and Rob had a special bond when Lamar was married to Khloe and Rob was crushed when they got divorced, but that brotherly love never went away," an insider previously told Dish Nation.

According to the insider, Rob Kardashian's sister and Lamar Odom's ex-wife, Khloe Kardashian, approved of the former NBA player's idea.

"Khloe is 100 percent on board with Lamar's plan. She adores her brother and knows how much he loved Lamar," the source added.

Despite not being spotted with Lamar this 2015, it may not be clear whether Rob Kardashian chose not to, or if their schedules just didn't made it possible.

Even so, Rob recently posted a photo of him and Lamar on Instagram captioned "Praying nonstop for my Brother!!"

Rob was recently photographed driving Khloe Kardashian's velvet Range Rover on October 19, but Inquisitr said it may not be clear whether his outing had something to do with his brother-in-law's transfer from a hospital in Las Vegas to Los Angeles.