will you sway with me (go astray with me?)

Blaise and Neville have... something. They spend their weekends together, kiss and visit Blaise's mother—all that. They're basically in a relationship. Except they haven't said so. Except Blaise isn't out, and when they go clubbing with their friends, Blaise dances all over the girls he finds. But they're basically in a relationship, so it's fine. It's fine.