While supermodel Kendall Jenner and NBA player Ben Simmons may look like the perfect couple on paper, it seems like the duo may have broken up. In an interview with US Weekly, a source revealed that busy schedules are breaking them apart.

“Kendall and Ben’s relationship is fizzling and dissipating due to scheduling conflicts,” the source said. “Kendall is so busy and has so much going on and doesn’t want to wait around for anyone. She knows there’s always a hot new fling waiting around the corner for her.”

Jenner and Simmons first started dating in May, when they were spotted going out for dates at several Los Angeles hot spots. Then, things got serious as the couple decided to rent a gorgeous $25,000 per month home together. Finally, fans knew Simmons had officially made it when he was invited on the family vacation to Mexico.

So what went wrong? The source reveals that Jenner and Simmons both have very demanding schedules that aren't conducive to a serious relationship. Saying the pair “are still talking a little bit, but she’s definitely not set on him.”

Any bets on who Jenner will date next?