One Direction - Tell Me a Lie Lyrics Meaning

The boy is fighting for his girl who wants to leave him for another and he thinks that somehow he can never do the right thing. He is tired of getting his heart broken over and over again by her. He is begging her that if she is leaving him at least tell him its his fault and blame him, insult him, anything, but not break his heart even more and tell him there is someone else in her life. So he is telling her to lie to him. And as she leaves him, he is reminding her to never forget that he was the person that made him happy once. This song shows that people don't always want to hear the truth, some actually prefer a lie than the hurtful reality.