The reality star opened up about the high-profile romance on Oprah's Next Chapter, admitting that she has wanted to date West for quite some time.
"I don't know why it took us so long to get together. I think we've always had an attraction to each other... one day it just happened. It took me by surprise," Kardashian told Oprah Winfrey.
Kardashian went on to admit she's "apprehensive" to discuss her and West's relationship because she doesn't want people to think it is merely a publicity stunt.
"It's your heart you're playing with. I couldn't sacrifice my heart for a publicity stunt," she insisted.
It was reported in May that the couple were already discussing marriage, but Kardashian has now stressed that she is in no rush to wed again.
"I'm not thinking about marriage right now. To have him (Kanye) in my life this way, says a lot about us," she said.
Kardashian previously claimed to Winfrey that she has matured since splitting from estranged spouse Kris Humphries last fall.
"I'm totally growing up," Kardashian commented. "A lot of my friends, the people that I love to just sit and talk to and spend my time with, are wiser, a little bit older than me."
Her stepfather Bruce Jenner has also said that he regrets Kardashian and Humphries's lavish Montecito, CA wedding.
Watch Kim Kardashian discuss Kanye West on Oprah's Next Chapter below: