Yeah which is why I liked the latter part of the movie so much because
(Uhh, spoilers I guess)
He got over it because she's a fucking whore. Ok, not really, but she still was that "amazing girl who seemed right in everywhere but still dumped you for no explicable reason" and yet despite that, he still has a spark of romanticism in the end. Basically, it aligned pretty much with my personal beliefs/experiences so, yeah, I could relate pretty easily. And I feel shortsighted because I didn't see it coming that her name was Autumn.