You think I'm ok

You look at me and think you know me
you think you know what's in my heart
but really you don't have a clue
and that's what's tearing me apart

you look at me and ask if I'm ok
you think you know what I'll say
but one day I might just say no
and what will you do on that day?

you look at me and smile like nothings wrong
you think I'm smiling back at you
but really it's just a frown
turned upside down for you

you look at me and think you know me
but you don't understand me at all
you think it's all easy for me
but trust me I'm not standing tall

you look at me and presume that I'm ok
you think you know what's on my mind
but really you're no-where near
...so now I'm leaving you behind