This is the Diary of a nation known an the United States Of America. Here you will see a side of him that the others don't.
[recent cover change update]
Pfft. Mattie's ignored all the time and beaten up when he is noticed, I can say with almost 100% certainty that Mattie has depression as well. He wouldn't laugh.
Then Prussia looks though the diary
Breaks into his house
Glomps him with the help of Canada