Creatures in the dark

"As I lay awake.
I dream of you. I cannot sleep
Because I miss you're sweet serene smell. I miss you're blue eyes.
I dream of the moment we commit our selves to each other.
I hear by give you my heart.
I give you my soul.
I give you every single inch of me."

A young couple fall in love.
A Romeo and Juliet story.
But for Romeo to keep his fair Juliet he must consume her soul.
Of the utmost darkest way but in the most purest form known to us.

Which craft has no limit on these two. They walk the line between life and love.