Trafalgar D. Water Law is a professional Doctor and is a well known surgeon. He works 24/7, drinks caffeine alot and is sleep deprived. He eventually takes notice of your presence since you constantly come back after a mild or small injury, he didn't realize he recognizes you until you finally told him about all the highschool memories — he was really lost in the caffeine that he nearly forgot about some of his memories. Though he was a little flustered hence remembering the crush he had on you.