somebody to die for?

I could drag you from the ocean,
I could pull you from the fire
And when youre standing in the shadows
I could open up the sky
And I could give you my devotion
Until the end of time
And you will never be forgotten
With me by your side

And I dont need this life
I just need…

Ive got nothing left to live for
Got no reason yet to die
But when Im standing in the gallows
Ill be staring at the sky
Because no matter where they take me
Death I will survive
And I will never be forgotten
With you by my side

Cause I dont need this life
I just need…

Somebody to die for
Somebody to cry for
When Im lonely

When Im standing in the fire
I will look him in the eye
And I will let the devil know that
I was brave enough to die
And theres no hell that he can show me
Thats deeper than my pride
Cause I will never be forgotten
Forever Ill fight

And I dont need this life
I just need…

Somebody to die for
Somebody to cry for
When Im lonely

And I dont need this life
I just need…

Somebody to die for
Somebody to cry for
When Im lonely

Dont go gentle into that good night
Rage on against the dying light

This is a song called 'Somebody to die for'.
She or he needs somebody to die for what?
Does she or he want somebody who could die for something or whom she or he could die for?