The sole male Kardashian and former sock designer made headlines for the first time in years when he skipped Kim Kardashian's wedding seemingly to avoid negative press regarding his overweight and generally unhealthy appearance.
No one knows for sure what may have triggered Rob's decline, but his sister Khloe scertainly has her theories:
Khloe Kardashian Blames Lamar For Rob's Problems
Discussing the matter with Brody Jenner in a a clip from the next episode of Keeping Up With the Kardashians, Khloe blames her troubled relationship with Lamar Odom for sending Rob down a bad path.