I Exist,Don't Just Notice

This is for the boy who knows that I exist but didn't care anyway (That's not your fault, you know, uhm, the caring part?). This is for the boy who knew I exist, shared this world with me but left anyway (So, what can I say but 'goodbye'?). This is for the boy who never knew my existence until I decided to quit and then he noticed me (I know I'm not the best girl in the world, but I'm northbound, I can't go south.)