Rob Slams Kim Kardashian Over Blac Chyna - KUWTK Preview

Keeping Up With The Kardashians Preview: Rob Kardashian lets Kim Kardashian have it for questioning his engagement to Blac Chyna. Plus, Kylie Jenner and Tyga are struggling in the season 12 preview. Starring Chloe Melas Produced & Directed by @ginoorlandini Subscribe! http://bit.ly/10cQZ5j http://hollywoodlife.com :: CONTACT US! :: Like Us On Facebook! http://on.fb.me/XJJ5yq Follow us on Twitter! https://twitter.com/Hollywoodlife