What am I?

I'm lost, I'm scared, I'm all alone
I'm lonely, I'm suffering, I was never in the zone
I'm scarred, I'm shaken, I'm thinking of you
I'm anticipating what else you might do

I'm sitting here, wishing you gone
I'm thinking to myself that this is all wrong
I'm doing my best to push you away
I'm telling myself that I'll be okay

I'm crying for you because now you're lost
I'm deciding whether or not if our friendship you tossed
I'm writing to you with your face in my mind
I'm wondering if this is right or am I blind?

I'm calling you back for just one last goodbye
I'm restraining myself from one hell of a cry
I'm writing your name in the sand on the shore
I'm realizing that I will see you no more