The One Who Plays Quidditch—
He's ten times better than Dominique. She works hard, but he has that pure, natural, raw talent for the game. At the family games, he always digs her team into the ground. He becomes captain of his house team (Hufflepuff) eventually, but by the time of his captaincy, Dom is long gone. He leads them to victory for the first time in forever.
But he doesn't feel at home on the pitch like Dom does. She lives, breathes, speaks Quidditch. It's the one thing that can keep her up at night. But for him, Quidditch is just a hobby. He likes it, yeah, but he likes something else more.
He likes to draw. If it were up to Louis, he'd be an artist when he grows up. But he knows that it's not a practical career path. But drawing and painting is just so much more fun to him than watching a Quaffle fly around the Quidditch pitch endlessly.
Sometimes what he draws is in his head, but sometimes he draws what's right in front of him. And Max is always right in front of him. He draws his brown eyes, the way they crinkle when he smiles. He draws Max's large nose with the small bump on the bridge, the only sign that it had been broken by his older brother. He draws Max's hands and the large calluses on them from playing Quidditch.
And then Louis realizes that his life is a lie. He likes art, but plays Quidditch. He likes Max, but dates girls.