Beautifully written and a believable account of two boys falling for each other. Ari's anger, confusion, and love slowly come into focus, right up till the last moments of the novel.

Spoiler:
What I found really cool, in a literary sense, is that Ari as the narrator doesn't reveal to the reader what he feels, cause he's in denial the whole time. Us readers are finally given the final piece of the puzzle just as he accepts the reality of his feelings for himself, though the whole time we've been questioning and wondering, just as he is.