Because it'll be creepy (and very obviously me) if she gets a letter that says "you gave me golden Oreos and that made me angry but I was more angry because you loved me and then totally ditched me for another guy. How cruel! And then we fought for a while and you still harbored feelings but your friends told you I was bad news so you never came to me, until the graduation where you tried to talk to me and I ran away from you. I guess that's my fault. But whatever! You're the worst! You didn't even try to give me the time of day." The end!