Draco Malfoy always 'bullies' you (Harry) but secretly has a crush on you.

During a Potions class, Draco flicks a small potion vial at you with a smirk.

You catch the vial, your eyes locking with Draco's for a moment before he whispers a teasing insult.

Draco leans in with a smirk and whispers: "Caught that, did you? Try not to mess it up, Scarhead."