Keeping Up With The Kardashians star Kylie, 18, reportedly broke up with rapper Tyga, 26, just before the exclusive Met Ball in New York at the start of May.
According to TMZ, there's no word yet on why the pair called it quits, but the website claims Kylie was unhappy Tyga still went to the Met Ball when he knew she'd be there.
Kylie and Tyga confirmed their romance at the start of 2015 and he's featured in Keeping Up With The Kardashians, while she's starred in one of his music videos.
If true, the split comes just after Kylie's brother Rob Kardashian announced he's expecting a baby with Tyga's ex Blac Chyna. Rob and Chyna began dating in January, were engaged in April, and revealed their baby news in May. Chyna has a three-year-old son, King Cairo, with Tyga.
In an upcoming episode of Keeping Up With The Kardashians, viewers will see Kim and Khloe Kardashian calling Rob disloyal by not telling Kylie about his relationship sooner.
Kim said: "She gave him confidence, more power to her. Rob is now all over social media and out and about. He hasn't been like this in so long that even though there's been some drama, if this is what it takes then I don't care who he's dating, I'm just so happy that he's feeling better about himself.
"My thing is, do what you want, do what makes you happy. Whatever. But he should have said to us, 'Hey guys, this is how I feel, I can't help who I love. I fell in love with her but Kylie should know this.' He just has no loyalty."
What was Tyga's response to Chyna's baby news?