They just dont know.

I stare ahead
watching my life consume me
my mask never changes
always happy
they just don't know

A lonely existence
only a select few to help stay
they expect strong happiness
all they see is a smile
they still just don't know

I cant die
I am depended upon to be strong
they need me to hold them up
they figure I wont break
they just don't know

So what do you do when you aren't allowed to break down?
- You wear a mask and hold it in.