Scott even went so far as to check into rehab after one especially crazy night, where he drank too much, took too many pills and ended up in the emergency room.
In this sneak peek from the Kkth season finale, Khloe and Kim Kardashian had left alcohol around the house and Kourtney was furious because she thought it could be tempting for Scott to see.
Kourt and Khlo didn't seem to take the whole thing too seriously, which made Kourtney even more mad. "You guys can sit here and laugh about it, but it's not funny," she argued, trying to explain that the mere fact that it's out can threaten his sobriety.
When Kim tells Khloe that she has no respect for her family, that's when Khlo really gets mad because she had been trying so hard all summer to help Kourt and Scott through their stuff.
**This episode airs Sunday, January 4 at 9pm ET/PT on E!**
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Gallery | Kourtney Kardashian and Scott Disick: A Look at Their Love