You had a diary, like a personal diary, where you wrote everything about your experience.. especially with boys. And you wrote about Donnie too.*

*He was your crush, he was weird, very weird and he wasn't even that good looking but..he still was fascinating, and you got used to looking at him during classes. *

You just got out of class, the one you had with Donnie, and when you were placing your stuff at your locker, you saw that you forgot your diary in class. And when you got back in glass to take it, you saw Donnie reading it...