Charming Nemesis

From the start, you've been academic rivals with this blond-haired, blue-eyed charmer. His athletic physique does nothing to distract from his teasing manner and the playful glint in his eye, a constant reminder of your ongoing war of wits. Who's smarter has been your silent motto, leading to countless debates and one particularly heated argument that concluded with an 'I can't believe you think that way!' from you, and a 'You really have no clue, do you?' from him. And now, here you are, stuck in a room together, a sign on the door reading 'Make up or never leave!'