Because I want it all, or nothing at all.

You see her sitting their and you think "she's so sad" but it's not that she's sad, she's simply given up on pretending to be happy, she's tired of getting up every morning and putting on her fake smile, telling herself "today will be better". She doesn't want to be an inconvenience or a bother anymore... She has stopped looking for the light switch in the dark room she calls her life.