Should have

It takes more muscles for me to smile then it does to frown
Hard to relate to "up" when you're always "down"
That fake smile I give when I'm starting to drown
You should have known

You see those tally marks all over my wrists?
Each one is another time I've been hurt
A pretty red tear for every clear one
You should have guessed

Is it my fault that I feel this way?
Emotions may come from within, but the source is external
So, when it's too late, and you're holding my limp body, crying
Well, you should have known

Signs are worthless if you are too blind to see them