Maybe it was because he kept mispronouncing her name ("Kim Kar-dijon," "Kim Kardi-shawn") and the universe only manifests what you ask for clearly, but it took almost a decade's worth of other relationships and Kanye's persistence before they finally got together in 2012.
But as much as Kanye wanted Kim, he knew he wanted to marry a woman who could hold her own in the power-couple equation, one who had her own capital and resources, as he told Details in 2009: "I feel like the type of girl I would be with is a fellow superhero"