I don't really like the misconception that Cloud was emo or depressed. He was cocky at the beginning and was a bit misled/tortured during his little identity crisis, but for the most part he remained pretty optimistic even later on in the game.
Anyway I've been playing through this game again and I'm getting kind of annoyed with all the little unrealistic things about it, especially during the first 5 hours or so. Most of the story still intrigues me though, so it's all good.