What Am I?

As a tear goes unnoticed as I to the eyes of many.
      Love fails, friendships fail, life fails.
As my heart pains with its empty hole I breathe,
    I attempt to breathe through the pain.

Anger and blame, tears and pain, days all the same.
   Friendships crackle in the fire.
Memories fade, childhood gone. Life a serious mess.
    The hand of Cain always near.

Am I but a dollar sign for the rich, or a pest to friends?
   What am I if they hate?
Assuming nonstop, unhappy with more. What are they?
  Yet I, the mouse in the cage, am worthless.

I stepped into the world to find indivisable cheer,
 lost affections,
  killed desire.
Happiness has become unfelt, a numb feeling.

I am quick to blame the world,
did I do this to myself?
Those who don't know me answer yes,
 but the judge cannot know.