Kim Kardashian To Kourtney: "You're Basically Like a Single Mom"
After Kim learns that Scott parties all night when he's supposed to be "working," she tells Kourtney. Kourtney tries to defend Scott, and when Kim asserts that she's like a single mom, Kourtney blows up with anger at her family.
For the record, Kourtney has a revelation towards the end of the show and realizes that Scott has been lying and clearly needs help.
[There was a video here]