Am I expendable?

I give my life for you, and in return i recieve silence.
Am I expendable to you?
Am I the one you send to the front line, because you don't care?
You seem to be so welcoming, when you draw me in.
Then I stand to face death alone.
With no one but my shadow to follow me into battle.
But even he cowers in the corner.
             So I stand alone......

Your promises of forever filled my soul, and made me soar.
Like filled with helium, where nothing but the cold winds of abandonment can bring me down.
Now the sharp edges of your absence has sliced my barriers.
I now flutter toward the floor where you will walk upon my tattered remains.
You use me for your personal gain, which begs the question,
             Am I expendable?????

So blindly you walk upon me to elevate yourself.
And unaware of the fact that at any moment that i move, you will fall from your artificial view.
Down to the level which you have bestowed upon me.
And when you are begging, screaming for help, i will ask this question,
             Am I expendable now????
                   And then i will leave, forever........