First, Sakura hates movies and books without proper endings.
She thinks life is already cruel enough, so everybody needs those small pieces of happiness whenever they can get one.
Sakura hates books and movies without a proper answer at the end because life always leaves you clueless and lost and alone.
Second, Sasuke hates Sakura being so naïve and gentle, because she always gets hurt at the end.
Sasuke hates Sakura still believing in him, because that means he can't give up and just die, because, really, she is determined stubborn Sakura and nobody dies under her hands.
Third, Naruto hates that he can't help his two dearest friends because he knows what love can do and what it can't.
Naruto hates Sakura for not loving him and he hates Sasuke for not loving Sakura and most of all he hates himself because he loves them both so much.
Fourth, Ino hates Temari – this Suna-nin bitch- because she stole Shikamaru away from her without ever knowing it.
Ino hates Shikamaru for setting his eyes on the wrong blond girl, knowing there's a whole desert separating them.
Fifth, Tsunade hates her job as Hokage of Konohagakure because she came to love every villager like her own child and it fucking hurt to see them die in the war.
Tsunade hates seeing her former apprentice, Sakura, being in love with the only man on earth who will probably be never in love with her.
Sixth, Kakashi hates that the actual Hokage can't see what he saw all along when he looks at his three former pupils.
Kakashi hates that they are more powerful than most adults ever will be because this means they will suffer so much more and that they are never quite able to live a normal life.