Chapter 1
If you told Sirius Black that James Potter broke your heart, he would laugh.
He’d be sitting at the Gryffindor table in the dining hall, with his tie tied into a lazy knot and his shirt half undone with a smile on his face. Some girl would be half on top of him, and you know it’s probably that Ravenclaw he uses to make Remus jealous. He’d be throwing food at Remus, trying to piss him off, cursing James for getting detention on a Hogsmeade weekend, and making fun of Peter for god knows what.
He’d be surrounded by his friends, or at least the ones who bothered to wake up. They’d look hungover from the previous night’s party, and you know there’s no way anyone would even think about approaching them.
If you somehow got the nerve to go up to him, let yourself be surrounded by sixth year Gryffindors, and tell Sirius Black that James Potter broke your heart, he would most surely laugh. He’d laugh and laugh and laugh until his stomach cramped and tears were running down his cheeks, but he’d never believe you.
“Did he really?” Sirius would ask, incredulous. If you nodded he’d only laugh harder, because how could James Potter, with his need to constantly please, break someone's heart?. You’d get nowhere with Sirius, I’m afraid, even if it did happen, because James would never do that. It’s James, after all.
~~~
If you told Remus Lupin that James Potter broke your heart, he’d call you an idiot with his eyes.
He’d be in the little corner at the far end of the library where he normally sits to do his work. It’s quiet there, away from the first years babbling and the fifth years freaking out about their O.W.L.S. You’d whisper it to him, being discreet, while people eye you from behind, because why would you be talking to a marauder?
And Lupin’s eyes will widen in shock a bit before turning gold, because you must be making fun of james. Surely, you must be joking. And when you finally placate him a bit, he’d pester you with questions.
“How’d you even fall for him in the first place?” “Are you mental? You must be mental. James Potter of all people.”
And the best one of all,
“You do know he’s in love with Lily Evans right?”
Because Remus has to bring up logic. He has to bring up reason. As though love ever listened to reason. But you know that no matter how Remus reacted, he would be right, because who could possibly forget the way James was in love with Lily fucking Evans?
He’d be sympathetic, of course, asking questions like
“Are you okay?” No.
“Would you like to talk about it?” No.
Or “Would you like some chocolate?” Yes, please.
But at the end of the day, he would think you’re an idiot. He'd tell Sirius and maybe even James himself. Not to make fun of you, of course, but because he’s curious as to how the hell someone could fall in love with James Potter.
~~~
If you told James Potter that James Potter broke your heart, he’d ask who this other James is.
Ask is a bit of an understatement. He’d scream “There's another one?” in his loud, energetic voice, and then demand that you tell him everything about this other James Potter. He’d want to meet James 2.0, as he so graciously dubs this other boy, and his eyebrows will furrow in confusion when you say he can’t.
If you tell James that it was him (making sure to point your finger directly at his chest so he gets it), chances are he’d be inconsolable. He’d freak out and apologize, over and over and over, running his hands through his hair, and you’d just stare at him, because how could someone possibly be that beautiful when they’re panicking.
And then suddenly he’d stop, because you’re not saying anything. You’re staring at him with this blank look on your face and he’d figure it out. Because it’s a prank, isn’t it? You’re lying and it's a prank or a joke of some kind to get back at him for whatever it is he did to you.
He’d tell you that you almost got him, but he’s smarter than that. He’d smile at you, or maybe it’s more like a smirk because that’s always been the type of relationship you had. He’d spin on his heel and walk away, and you know he’s never going to get it.
~~~
If you told Peter Pettigrew that James Potter broke your heart, he’d tilt his head and look at you.
He'd just look at you for a long time before going back to playing chess alone. You’d turn around and sigh because you’re not going to get anything from Peter of all people, and you’d start to walk away.
And he’d sit, staring at his chess board and say the words that make him your favorite marauder:
“Me too.”