Oxygen

I walk the streets
Through a misting rain
On  my way
To get lost again
 
The clouds keep pushing down
Till I'm halfway in the ground
It won't be much longer
Till I'm no longer around
 
I tried my best for you
But my best wasn't enough
Got home from work
And you'd packed all your stuff
 
There were things  
I just couldn't give up
I guess you thought I would
Well I did too
 
But this thing has become a part of me
Like the oxygen I breathe
Just cut your losses
And let me be