Its the musings of a guy who has 'thrown away' his one true love and now fears for himself in his lonliness.
Lyrics
When you wake up tomorrow
And start yet another day without me
I'll be ending another night
With no hope, no love, no warmth
I never feared for myself 'til I realised
Just how alone I am
And only you can make it better
But I'm so afraid I can never come home
Every night fills my eyes
And I drown in another river of tears
And I whisper to no-one
And hold a hand that isn't here
I never stood on my own 'til I threw away
The only strength I've known
Now who will stop me falling
Cos I'm so afraid I can never come home
Who will stop me falling
I'm so afraid you won't say 'Come home'