The 31-year-old vented herself out at a court hearing Wednesday, the tmz.com quoted a source as saying.
"Kris is the first person I ever had to break-up with and that f****d with my emotions," Kardashian said.
Kardashian has also accused the 27-year-old player of threatening to ruin her career, when their marriage was falling apart.
"He told our producers he would destroy my career and me if the show wasn't edited right," she added.
The two got married with a much publicised television wedding on Aug 20, 2011 but filed for a divorce just 72 days later. Kardashian is currently dating singer Kanye West.
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