Hermione: How does it feel, Harry? When you see Dean with Ginny?
Harry: Oh. Um…
Hermione: I know. I’ve seen the way you look at her. You’re my best friend.
*Ron bursts in with Lavender, laughing, then sobers when he sees Hermione and Harry*
Lavender: Oops! I think this room’s taken.
Ron: What’s with the birds?
Hermione: Oppugno! *Hermione’s flock of birds fly at Ron, who flees the room. Hermione sinks next to Harry and breaks down crying*
Harry: It feels like this.

One of my fave scenes in Half-Blood Prince…