The guy forever beside me

Following with the shadows
Never far behind
Appears when I'm alone
Like a thief in the cold night
Disappears like the darkness
When strangers turn to friend

It hurts me to see him
But there no choice
he comforts me
But still hurts me
As remind me of what I have lost

Days go past
without me not seeing him
Though he is there
But yet not ever comforting
He is the one I call
Loneliness