Rob Kardashian Defends Proposing to Girlfriend in New 'Keeping Up

He was seen sparring with his family in a new preview of "Kardashians."
The model posted a video of Kardashian agreeing to let her train him.

Rob Kardashian's romantic proposal to girlfriend of three months

Rob Kardashian's Girlfriends Through the Years

Rob Kardashian's New Girlfriend Mehgan James Is a Kardashians

Scott Disick Bashes Blac Chyna, Says Khloe Is A 'Co-Parent' To Dream

Rob Kardashian Kept Engagement to Blac Chyna a Secret from Family

Wendy Williams Slams Rob Kardashian's New Girlfriend, Says He

Inside Rob Kardashian's VERY romantic proposal to Blac Chyna with

Timeline of Rob Kardashian's Family Drama

Inside Rob Kardashian's VERY romantic proposal to Blac Chyna with

Kardashian fans think Rob has a secret new girlfriend & she

Kourtney Kardashian and Travis Barker's Relationship: A Complete

Rob Kardashian Today: Rare Photos of Him Then and Now