It was too bad that the look on his face made it clear she had missed the target.  For a Slytherin, Draco Malfoy was really very bad at lying, or maybe he was just bad at lying to her.  Their hearts wanted to beat with the same rhythm.  Their breathing wanted to synchronize.  He couldn't lie to her without lying to himself and, whatever his flaws were, Draco had learned to look at himself with honest eyes.