Rex USA 1 / 12

Kris Jenner knew Bruce Jenner liked to dress in women's clothing, that wasn't news to her. But, she was still somewhat blindsided when her ex husband decided to transition to a female.

"I never saw this coming in a gazillion years," she told him during E!'s "About Bruce" special. "Your truth isn't always the truth. You have a story to tell, but you tell it to people that can't contradict and say what the truth is."

RELATED: Bruce Jenner's life in pictures

Publicly, Kris has remained steadfast in her support for her ex, but she still admitted that she's confused about the whole process.

"I think you shut me out a long time ago," she told him in an emotional tear-filled heart-to-heart. "I always knew that you struggled with wanting to dress differently and dress as a female and that was something you did whenever you got that urge. That's just what the only thing I experienced with you."

RELATED: Bruce Jenner: Family and friends show support

During the talk, Bruce admitted that telling Kris his "truth" was harder than telling his children.

RELATED: Kim Kardashian's never before seen selfies

"For the first time in my life I'm trying to tell the truth," he said. "I've been to every one of the kids, one at a time…You're the toughest one to talk to out of anybody."

Kris believes she knows why that is the case. "Maybe it's because I'm the one you lied to the longest."