Last episode, Kris Jenner defended Scott Disick on Keeping Up with the Kardashians. She said he's prime marriage material, as evidenced in this clip.
But Rob Kardashian disagrees.
In a preview of the wholly unscripted drama to come this Sunday, Rob visits Kourtney and Scott's house for the first time and explodes when asked why it took him five months to do so: "The reason I don't come over here is because of Scott. He's an alcoholic! He's a negative person in my life... Show me that you're mature and show me you're mature enough to have a kid with my sister."
Watch the totally believable scene below.