The 60-year-old reality star surprised fans by praising the 32-year-old club promoter on Instagram.
Kardashian posted a photo of herself at home with Disick, sharing her love for him in the caption.
"This is one of the true loves of my life... Feel blessed to have him as the baby daddy to my Grandkids... You are amazing @letthelordbewithyou and I love you. #proudmama #memories #family #youareeverything," she wrote.
Jenner's accolades come amid rumors Disick and Kardashian may reconcile.
The club promoter celebrated Thanksgiving with his ex-partner and her family, and appeared to enjoy a cozy night in with Kardashian and their three children Saturday.
Disick and the 36-year-old reality star were together nine years before splitting in July, and share 5-year-old son Mason, 3-year-old daughter Penelope and 11-month-old son Reign.
The club promoter left rehab again in November, and has reportedly improved his behavior.
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"Scott has made an effort to cut bad influences out of his life," a source recently told E! News.
"At the time, he didn't really care because he was caught up in all the partying, but he's finally realized the party has to stop."
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