In the camp-set film Moonrise Kingdom, Sam and Suzy are preteen kids in love who run away from their troubled life situations to be together. In one scene, Suzy (who doesn't get along with her parents) laments that she wishes she were an orphan like Sam sometimes, because all her favorite literary heroes are. His response is great.
Line on Love
Sam: "I love you, but you don't know what you're talking about."