It could be that the PV and such are so vague just for one reason, so everyone could make their own interpretations. Link the lyrics to your own life, add in some attitude and such. I dunno, I like everyone's interpretation though.
She's walking alone, wanting so badly to have someone by her side, but doesn't wanna put up a weak front. People come into her life, and change her, then leave, and come back again. Isn't that always how life is, you have people who change your life, and then they leave. Sometimes they come back again, sometimes they don't.
Iunno, that probably sounds way silly.
