History is repeating itself. Scott Disick is known for his hard partying ways, but it seems he has only gotten worse since his split from Kourtney Kardashian. And this time, Kourtney is done trying to help.

Sources are revealing exclusively to Life & Style that Kourtney has given Scott an ultimatum: get sober or stop seeing the kids. “She’s done everything she can to help, and he’s rejected the efforts,” the insider said. “The only person who can save Scott now is himself.”

MORE: Kourtney Kardashian Narrowly Avoids Swimsuit Malfunction While Vacationing With Boy Toy Younes Bendjima!

The troubled KUWTK star has overdosed in past, landing in the emergency room in 2014 after ingesting a lethal combination of cocaine, Xanax, and alcohol, according to his former manager David Weintraub. However, things got so bad over the Fourth of July weekend that Scott, 34, was partying so hard, “he was taking trips to the bathroom to throw up.”

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Kourtney, 37, is determined to put her kids, Mason, 7, Penelope, 5, and Reign, 2, first — even if it means cutting her ties with her ex. “Kourtney thought it best to separate completely from him,” the source explained, “for her sake and the sake of their children.”

Instead of focusing on his sobriety, Scott is set on landing a spin-off reality series alongside his 19-year-old summer fling Bella Thorne. The duo has been spotted partying together everywhere from Hollywood to Cannes — and Scott wants their romance in front of the cameras.

MORE: Scott Disick Just Gave Kourtney and Bella the Same Bouquet of Roses, Proving He Really Is an Idiot

“Scott’s written a synopsis for a reality show based around him and Bella hanging out and partying together at clubs,” a source told Life & Style. “She already has a huge social media following. But she wants even more, and Scott’s promising her that won’t be a problem.”

Meanwhile, Kourt is looking happier than ever with her 24-year-old boy toy Younes Bendjima — and we don’t blame her! The couple, who first met during Paris Fashion Week last year, recently vacationed together in St. Tropez.