Bored.
Sitting in the library, gnawing on your quill. Thinking. Sad? Naa, can't be. Everything is perfect. Still. Wish James was here, no you don't, you don't care, you're perfectly fine without him. But.
You have other people to hang out with, they like you. They think that you're cool. There is Peter, Peter Pettigrew, who would kill trying to please you.
And Remus. A good friend, but he isn't the one who can end a sentence when you begin it.
The one who you have been sitting through an never ending series of detention with. Who you've spied on that slimy slug Snivellus with, and...no, none of you has ever talked about that again, there is a silent agreement between the two of you to never talk about the whole thing. But the two of you will hate him forever!
The one who knows the real you. Who has read that letter your parents sent you when you were in first grade. After he found you on the floor of the 3rd floor's bathroom. The one who would get you to the hospital wing, when you're to drugged up to think for yourself. The one who would tell Madam Pomfrey that you and him had just been "playing around with some ingredients we've found in some cabinet in the potions room." And who would not tell anybody about the day you were so upset because of that little brat Regulus and what he said to you, you trashed the whole 5th grade's dormitory. Who would wait until you've calmed down and then helped you to repair everything.
The one who knows your secrets, and you know his. Stuff that is shared with nobody else. Like the thing with Evans. At first you thought he was making a joke. Evans? Lily Evans? But when you took the time to look closely, you could tell. And for once, you didn't laugh.
They say there are only 4 or 5 people like that you ever have the chance to know in your whole life. A friend like this. Has to be appreciated.
So off you go and look for him, and tell him that you are sorry, you didn't mean to get so pissed and say these things about Evans and Snape in the hall that are NOT true (maybe they are, but you won't tell James that) and are we friends again? And after a few moments of hesitation James will say okay, friends again, but don't ever do that again. Ever. And you will answer, of course not, Prongs. I promise. Only... when the mood strikes me!
And James will try to act angry, but he can't really be, so you both laugh, and you will be friends. And in 50 years, you will still be friends, because it was meant to be, that you will be friends all your long life long.