Are Kourtney Kardashian and Scott Disick on the verge of a split?

A new report claims that Kourtney wouldn't let her on-again, off-again boyfriend join her family — including their three children, Mason, Penelope, and Reign — on a trip to Costa Rica after his party boy ways at Sundance came to light.

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A source told People that he's currently "in the doghouse" and that "Kourtney disinvited him" after he was spotted flirting with a pretty brunette at the film festival's annual TAO pop-up.

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However, the insider told the outlet that they will be accompanied by Kim Kardashian, her two children, North and Saint West, Kris Jenner, the momager's boyfriend, Corey Gamble, Khloé Kardashian, Kylie Jenner, her boyfriend, Tyga, and his son, King.

Kim's husband, Kanye West, will not be in attendance because of work obligations.

“They are all excited about the trip. It will be relaxing for them, but also adventurous with activities like rain forest zip-lining planned. They will be filming for the show the whole time,” said the source.

Kourtney and Scott got back together in December after ending their nine-year relationship in July 2015. They also endured an epic paternity scandal, when In Touch revealed she was pregnant with her fourth child — and there was a chance the baby daddy was her hookup pal Younes Bendjima.

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"When she told pals a few weeks ago that she missed her period and fears she’s pregnant — she also said she didn’t know who the father is," our insider explained. "Kourtney is very fertile. She has a big problem."

They then added that "Scott hit the roof when he heard she was hooking up with Younes."

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We would hate to see them break up for the umpteenth time.

See how much the Kardashians have changed over the years by scrolling through the gallery!