According to People, Jenner and NBA player Blake Griffin first sparked dating rumours in 2017 when they were seen leaving a club together in Los Angeles after attending a concert. Despite the gossip, Jenner and Griffin's relationship is left largely in the dark.
A very private person, Jenner only once (and very briefly) acknowledged being in a relationship around the same time the dating rumours started. "I'm happy. He's very nice. I have someone being very nice to me," she said during a 2018 interview with Vogue. However, according to a report from People, things started to fizzle out that same year shortly after Griffin was traded to the Detroit Pistons.