There you go underestimating me again. It's not that I undere...
MARK: "There you go underestimating me again."
ADDISON: "It's not that I underestimate you, it's just that I don't think about you. At all."
MARK: "Well, you should."
Want more Grey's Anatomy?
Sign up for our daily newsletter and receive the latest tv news delivered to your inbox for free!