Naruto is a tragedy. Not one involving blonde idiot boy, pink girl and dark boy, but instead one involving Kishi and his editors. Kishi was weak, so the editors showed him many convincing arguments. Kishi rather than face the storm, chooses to "lament his failed character (pink girl)" and obediently do as he's being asked.
And then it sucks! I know, I know, I took too long to get to the tragedy. My bad.