Scott Disick Breaks Down on 'KUWTK': 'I Have Nobody'

Keeping Up With the Kardashians is revealing the pain behind Scott Disick and Kourtney Kardashian's recent breakup.

On Sunday's season finale, the family sees the photos of Scott, 32, canoodling with his ex Chloe Bartoli in Monte Carlo, and Kourtney begins to sob. "I'm literally on the verge of a mental breakdown," she tells her sister Kim. "I've worked so hard to keep this family together, it makes me sad for the kids."

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"I could never rely on him, or depend on him for one single thing and I don't want to show my kids that that's OK," Kourtney, 36, adds. "I need it to be done."

The breakup is hitting everyone in the family hard. In the preview for the upcoming season 11 of KUWTK, Kourtney's mom Kris Jenner confronts Scott, telling him, "It breaks my heart to see her in pain."

WATCH: Kim Kardashian and Kris Jenner Call Scott Disick a 'Piece of Sh**'

Fighting back his own tears, Scott admits, "It's been a really hard time, going from like, having all of you guys to having nobody."

Wiping away tears, Kourtney tells her ex, "You forget what happens when you're on a binge."

WATCH: Scott Disick Calls Nude Kourtney Kardashian a 'Hot Mama'

"I f**ked up," Disick confesses. "I made the worst decision I've ever made in my life."

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Kourtney and Scott were together for over eight years and have three children together. An ET source says that despite their history, it's not likely these two will be rekindling their romance.

"Kourtney is not taking Scott back -- never, as of right now," the source said. "Kourtney has been through a lot of drama with Scott over the years but it's for real this time."

WATCH: Scott Disick and His Rumored 18-Year-Old Girlfriend Spotted in Miami

Just this month, Disick was spotted out with his rumored new girlfriend, 18-year-old model Lindsay Vrckovnik. Here's what ET's eyewitness had to say about the reality star's rendezvous.

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