A former nanny to the Kardashian family opened up about the momager who allegedly had emotional outbursts and was obsessed with "fame, power, and money."

Pam Behan, the former nanny, tells NOW that Kris threw a fit when she found out that Caitlyn Jenner, who was once Bruce Jenner, was planning to transition into becoming a woman.

Behan was originally a nanny to Caitlyn's children from a previous marriage with Linda Thompson, Brandon and Brody Jenner. Then she was a nanny for the Kardashian family from 1991 to 1996.

The former nanny claimed to have learned about Caitlyn's secret 20 years ago when she confided in her. 

"He (Bruce Jenner now Caitlyn) always had a feminine quality," she said. "­He was more like a girlfriend. He was sweet and understanding­, he cared about what happened to me."

Behan says Kris Jenner was very accepting of Caitlyn's gender identity behind closed doors after a while but their marriage was over long before the official divorce.  

"I think they lived separate lives for many years despite being in the same house," she revealed. "I think the fire in their marriage was gone a long time ago."

Yet, the momager would criticize Caitlyn's clothes and treat her with no respect before she fully transitioned. She had a sick obsession with "money, fame, power and control."

"They boil down to an insecure person, which sounds crazy I know, but I'm one of the few people who've seen the other side of her," Behan revealed.

"There were moments when she would let down her walls and weep when no one was watching and cry on my shoulder," she added. "I didn't like to see her cry, but it was nice to see her be human."

Caitlyn Jenner is living her life as a transgender woman after revealing her true self on the cover of Vanity Fair a few weeks ago. Meanwhile, Kris has moved on with her young partner Corey Gamble.