Nightmare - From MSG (McAuley Schenker Group) 1991
Nightmare lying here in the dark
Scared like my dreams made their mark
I wonder
Dreamer always alone
Lost in a part of myself I can't find anymore
I wonder
if it's gonna end tonight
I can't sleep alone anymore
I need you here with me
Even though I closed all the doors
There's somethin' holdin' me
*Never Ending Nightmare
Always there instead of you
Never Ending Nightmare
No escape this time from you
Lately been around someone new
Needed to fill in the space That once sheltered you
Still I worry,
if you're gonna be alright
I can't sleep alone anymore
Need someone here with me
All I ever wanted and more
My dreams are fighting for
** Never Ending Nightmare
Always there instead of you
Never Ending Nightmare
Punishing me for the things I do
Never ending Nightmare
No escape this time from you
Scared like my dreams made their mark
I wonder
Dreamer always alone
Lost in a part of myself I can't find anymore
I wonder
if it's gonna end tonight
I can't sleep alone anymore
I need you here with me
Even though I closed all the doors
There's somethin' holdin' me
Always there instead of you
Never Ending Nightmare
No escape this time from you
Needed to fill in the space That once sheltered you
Still I worry,
if you're gonna be alright
I can't sleep alone anymore
Need someone here with me
All I ever wanted and more
My dreams are fighting for
** Never Ending Nightmare
Always there instead of you
Never Ending Nightmare
Punishing me for the things I do
Never ending Nightmare
No escape this time from you

Only this song can maintain in this explicit way the sorrow a heart can maintain when the other half is gone. You know you are probably never going to be with that person again and you might be with someone else but you still worry about that other person, who is not there but the nightmares are the reminder of that past.