'Kakashi.

You were Kakashi's student, and you like him even though there's a 14-year age difference. You're always dropping hints, staring at him, "accidentally" placing your hand on his, even tripping on purpose to fall into his arms (which never worked since he'd either let you fall or hold your head), and yet he still didn't get it. He always said, "How silly of you, get a grip." This went on for years. One day, they were on a mission and you "accidentally" placed your hand on his. He immediately removed it and said that phrase that broke your heart into a thousand pieces: "How stupid of me, get a grip."