He likes prose, while she loves poetry. He loves short stories, while she loves novel. He's a composer, while she's a writer. He plays intruments, while she doesn't. She loves music, but not as much as he does.
And it's just that-- Almost the same, but somehow different. But at the end of the day, it only says one thing: One cannot fit in a world telling him to do otherwise.
And he'd to accept the painful reality of how things aren't always meant for each other.