One of my favourite headcanons is that
Okay so, it’s eighth year Hogwarts, and Draco comes back with Pansy and Blaise.
They’re never apart, going to classes together and leaving together.
No one ever sees them outside of classes and dinner, but no one really pays attention to them.
He watches Draco, wondering what the hell he is doing that would take up so much of his time.
Because the only times Harry sees him and his gang is in the great hall and in classes.
He thinks Draco is up to something, and tells himself that he’s going to watch his every move, to find out what he is up to. (He doesn’t really think that Draco is up to something, he’s just in love him him.)
So one evening, at dinner, Harry watches the trio as the stand up and leave the Great Hall.
As soon as they are out of sight, he mumbles something to Ron and Hermione and sprints out of the hall.
As soon as he is out of sight, he grabs his invisibility cloak from his pocket and engorges it.
He walks quickly towards the dungeons, where he spots three familiar heads walking and whispering to each other.
When Draco whispers “protect”, and the door to the common room opens, Harry slips in, unnoticed.
He follows them up to what he imagines is Draco’s and Blaise’s room.
They open the door and head inside, and Harry follows them, under his cloak.
He stops in his track, mouth agape at the beauty that is the room. It’s simple, and surprisingly homey. Emerald green walls and black floor, windows showing the depths of the Black Lake. An almost spent fire crackles from the other side of the room, and the wall is plastered with pictures of the trio standing in front of him.
Draco and Blaise sit on one of the two beds, bringing up their knees to their chests.
Pansy heads to one of the cabinets and pulls out a bottle of what seems like whiskey. “Jesus, Draco,” she says, reading the label. “Do you have anything that doesn’t cost as much as this castle?”
Harry cocks his head. What are they doing? Deep down, he knows they’re not really up to anything.
Draco chuckles warmly and Harry’s heart jumps.
Pansy heads to the bed and sits down, opening the bottle of firewhiskey and taking a big sip of it. “So.”
Draco and Blaise look at her. She turns to look at Draco. “Anything you want to rant about today, our dearest Draco?”
Draco glares at her. “Nope.”
She smirks. “Oh, really?”
“Ok.” And she turns to Blaise, asking him whether they had homework for the day after.
A couple minutes pass, and Harry has taken a seat on the side of the door. He checks that the cloak is still covering him, and raises his head.
The scene that plays out in front of his eyes makes him want to cackle. Draco obviously wants to say something, but keeps his mouth shut. Pansy and Blaise are completely ignoring him, chatting to each other about meaningless things.
Suddenly, Draco surges forwards and grabs the firewhiskey bottle from Pansy’s hands, successfully startling her and gaining her attention.
He takes a swig of it, and looks at his two friends. “Okay.”
Pansy completely turns towards Draco, practically bouncing from smugness.
Blaise started at Draco, a knowing expression on his face.
“I want to say something.” And he takes another swig.
Blaise turns to pansy and whispers something to her, almost too quiet to understand, but Harry picks it out. “It’s not like it’s going to be any different from yesterday, right?” And pansy giggles.
Harry doesn’t know why he doesn’t leave then. They’re obviously not up to anything, just three normal teenagers getting drunk and being silly. But he doesn’t leave.
It’s not because he’s in love with one of them.
(Couldn’t physically write more than this but I’ll write part 2 soon)