• Kourtney Kardashian and Scott Disick began dating in 2006.

Kourtney Kardashian and Scott Disick began dating in 2006. (Photo : Reuters)

The Nov. 22, Sunday, episode of "Keeping Up With The Kardashians" reveals that Kourtney Kardashian has had enough.

Kourtney is choked up in the upcoming episode as she explains to her mom, Kris Jenner, why Scott Disick has been barred from entering her gated compound, according to US Magazine.

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In the latest video clip, the 60-year-old Kris is portrayed as a peacemaker as he mediates between the exes. On her visit to see the 32-year-old Disick, the momanger calls her daughter to hear her side of the story.

Kris says, "Scott seems a little confused because he thought there was an open-door policy that he can come by whenever."

At the same time, Kourtney, 36, interjects by saying, "There was! There was! He was flaking too often. She added that each time she tried to have Disick sit down and have dinner with his children, he avoids it and sits in a different room.

Furthermore, Kourtney pointed out that Disick flaked on going to the kid's first day of school. "He said, 'I can't go to school s--t because I get anxious.' When really he went out and partied throughout the next day."

According to a different report from the same publication, Kourtney and Disick, who are parents to Mason, 5, Penelope, 3, and Reign, 11 months, separated back in July. The latter continues spending time with his kids, but Kourtney believes the children should be his priority.

Talking to Kris as Disick listens in, Kourtney added, "[He's] just a real f--king a-hole. He's only concerned with himself and not the kids. And that's what's important here. The kids."

"Keeping Up With The Kardashians" airs Sundays on E! at 9 p.m. ET.

Watch this footage for teh upcoming episode of "Keeping Up With The Kardashian."