'how can you be sure?'

Seen all good things and bad
Running down the hill
All so battered and brought to the ground
I am hungry again
I am drunk again
With all the money I owe to my friends

Chorus:
When I'm like this
How can you be smiling, saying
How can you be sure 2x

If you walk out the door
Will I see you again
I've grown hungry again
I had drunk again
All the money I owe to my friends

Repeat Chorus 2x