Heartbreaking moments, happy moments, moments where you jump up and down in joy and others where you want to punch the main character in the gut because he's being a typical high school boy that cares more of what his friends think even though he's dating the coolest girl ever but the school hates her.
Though I am probably biased because I don't care what other people think of me, and even then in high school I didn't and I knew that in his shoes I would have made different decisions than he, even back then.
But the feels!
I avoided reading this back in 7th or 8th grade when my English teacher recommended it to the class, because at that age I didn't want to read what I thought was a "girl book." That being said, it's a boy narrator and the girl is awesome. But I don't think I would have appreciated that back then, whereas now I absolutely revel in young adult fiction that decides to toy with my emotions and ask the BIG QUESTIONS and have BIG IDEAS (see my John Green comment above. His books do that and I love them to death).