Summery: this is basically a letter Harry wrote to Ginny the night before the Final Battle.
Dearest Ginny,
I don't know if I'll live through tomorrow, but I'm having Hedwig take this to you no matter the outcome. Tomorrow is, after all, the Final Battle.
Ginny, I have to get this off my chest. I love you. I have a love that developed from a crush ever since I first laid eyes on you. That crush has been developing since then. If I don't live through tomorrow, I'm going to miss seeing your flaming red hair, seeing you blunder at the sight of me. I'm assuming it's a simple crush, like my love started as, but I'm hoping it's more.
All those times we sat in the Griffindor common room together, I could have told you, but I didn't have the guts. I suppose you think me weak now. I'm sorry Ginny. The Sorting Hat shouldn't have put me in Griffindor; I didn't even have the courage to tell a girl I love her. I'm so ashamed of myself. I should transfer to Slitherin, that's where the Hat originally wanted to put me, but I convinced it not to.
I've never told any one but Dumbledore where the Hat wanted to put me. That makes you sort of a confident.
I want you to know, if I die, you can keep Hedwig if you'd like to. She's a very sweet owl, and I expect she'll be useful once you're old enough to join to Order. (If you want to, that is.)
Ginny, you don't know how hard for meit's going to be to go into that Battle. Or how hard it is to say this.
Good-Bye, Ginny.
Okay, it isn't nearly as long or as sentimental as I had hoped. You see, I was lying in bed one night trying to get to sleep, when this idea struck me. Trust me, this story sounded a lot better at 1 am.