According to a new report, the Keeping Up With The Kardashians matriarch has cooled off her relationship with Corey, 33, a music industry exec who works with Justin Bieber's manager Scooter Braun.
An insider told RadarOnline.com: "They haven't been an item for a while."
The source claimed Corey was just a rebound for Kris after her split from Bruce Jenner, her husband of 22 years.
Kris and Bruce announced their separation in October 2013 but are believed to have actually broken up much earlier than the announcement. They have two children together: Kendall, 19, and Kylie, 17.
Kris, 59, has always been very tight-lipped about her rumoured romance with Corey, although they've been pictured together on several occasions.
It's thought Kris and Corey's relationship will be spoken about in the tenth series of Keeping Up With The Kardashians, which began at the weekend.
A trailer released earlier this year featured a scene showing Kris and Corey in a club together.
All you need to know about Kris Jenner in less than two minutes!