E. Lockhart said this quote

Another thing that happens in the movies: They all have these dramatic crises where everything looks bleak and you think the couple will never, ever get back together. But then they realize they can't live without each other, and in the end they live happily ever after.It's all a lie. When you hate someone you used to love, and you think he's done something awful-he probably has.You're not going to love him again.He's not going to apologize, or come back to you.He probably doesn't even ever think about you at all, because he's too busy thinking about someone else.