Kourtney Kardashian isn't holding back on this Sunday's Keeping Up With the Kardashians.
In this clip from the episode, Kris Jenner invites Scott Disick over to her house to talk about his relationship with Kourtney.
When Scott arrives, they sit down and Scott starts telling Kris about how Kourtney took the barcodes off of all his cars so he couldn't get into the house.
Kris tells Scott she feels like she's "missing a piece of the story" and decides to call Kourtney and put her on speakerphone.
"I'm just wondering from your perspective, because Scott seems a little confused because he thought there was an open door policy that he could come by whenever," Kris says.
"There was," Kourtney responds. "There was, but that has changed. He was flaking too often, every time I tried to have him sit and have dinner with them he sits in the other room on his phone. He flaked on going to the kid's first day of school, he says 'I can't go because I hate school s--t, I get anxious.' When really he went out and partied through the next day, just like a real f--king a--hole."
Kourtney goes on to say, "His main concern is himself, not the kids and that's what's important here is the kids."
Take a look at the emotional clip above to see Kris break down in tears listening to Kourtney's side of the story!
Watch an all-new episode of Keeping Up With the Kardashians Sunday at 9 p.m., only on E!