Kim Kardashian broke down in tears as she pleaded with her then husband Kanye West: 'your personality was not like this a few years ago!' in an explosive documentary trailer.

In the emotional teaser, the reality star tells the "Gold Digger" rapper that he isn't the same person he was a few years ago.

Kardashian — who shares kids North West, 12, Saint West, 9, Chicago West, 7, and Psalm West, 6, with the rapper — previously alluded to the cause of her split during a conversation with her sister Khloe Kardashian about her own divorce from Lamar Odom.