One of george's greatest lines is the "It's not you, it's me" one (did Seinfeld--meaing the Show, not Jerry personally--really coin this like all the other catch phrases of theirs?)
George: "You're giving me the 'its not you, it's me routine?' I invented 'it's not you, it's me.' Nobody tells me it's them, not me. If it's anyone, it's me"
George's Girlfriend: "Alright, George, it's you!!!"
George: "You're damn right it is!!!!!!"