Lyric discussion by summer89 

I think this song is mainly telling about someone that had given her world for someone she really loved, but he had been cheating on her back instead. She found it incredibly disappointing but she knows he's an unworthy jerk. She might have been in love with him but shw had to get over him. And she convinces both herself and that guy that he's easy to replace. Maybe, she's some girl next door who had rejected all other guys (probably ones who'd never break her heart) to be with him; it's not hard to get a guy chase after her. But she still even needs to ensure herself that she can fall for another guy instantly.

I really understand this song; the very same thing once happened to me. I could have just walk away with another guy who seemed much better than him, but I chose him. And I gave him everything. And he eventually cheated on me. I know he's a jerk and thing.. And I know I could just walk away with some other guy.

But this song is mainly about a broken heart, and be tough afterwards.

An error occured.