She has to.

Somewhere hiding behind all the lies, lives a girl who would do anything not to cry.
She does anything and everything not to.
She's so careful not to show them what it is she has to do.
They tell her she doesn't have to do anything she doesn't want to, but they don't know that in her heart she has to.
Time and time she ends up in the same place,
wishing, wondering, wanting, and hoping things will change.
But to keep her heart beating and the tears from her face, she's got to do what she has to.
Maybe it only helps for awhile, but all those seconds count in her mind.
Because during those seconds she isn't crying or trying, she's just doing what she has to do.