meant to be?

Before him, everything was dark lonely and dismal. She couldn't breathe. They all looked at her wrong...they knew there was something about her. But he gave her a chance. He lent a hand to her. He threw his arm through the disgusting, inky darkness to find her waiting hand, pulling her to her feet. She clung to him, belonged to him, loved him.
He made a life for her. He gave her a home and a name. A soul and a heart. A reason to live. And it was him. Her mind was no longer teetering on the edge of it's own self-destruction. She touched him and knew she was his and without him she was nothing...
but then...just years after she had decided she was his...things began to change. She felt different. She felt lonely again. Was he enough?
He whispered in her ear every night. Yet she still cried. She couldn't sleep at night, her body would shiver with the fright of dying there. Death crossed her mind...that sinister grin it always wore mocked her. She hit him and told him to never see her again.
Big mistake. Now she was all alone again...he was there, in the back of her puzzled mind, yelling her name. She knew she had to go back to him.
An addiction to a person. She couldn't eat without him...couldn't breathe without him...couldn't go a week without his rough, unrelenting sex. She was his and now it scared her. Her old life...for what it was...was unreachable. She had tried to leave him and now she realized she couldn't. She looked in mirror and saw it crack. Looked at her veins and watch them turn black. Watched children dodge her glance in the street.
He was...not human...a drug...a demon...He had caught her in her moment of loneliness and now she was his. Chained to his heart, forever owned by him. She hadn't seen it coming. Engulfed in a darkness that dwarfed the lonliness she once had, she lay in his room, screaming only for no one to hear...
Demons come in the most desireable forms. They lay in wait, even for centuries to find the perfect little person to crush in thier blackened, tempting hand. To watch them fail, to watch them fall from thier cause. He watched her slowly become hers and enjoyed, nay, feed on every moment she began to spiral into him. He could feel her inside of him now...and he loved it.
However this demon was different. He wasn't always a demon. He started as a boy with good intentions to help this poor girl. But...once he got the taste of her belonging to him...the feeling that he was her everything...it consumed him...
kept him up at night, staring into the blackness of his room...but seeing so much more than darkness. He transformed. He became the demon. He tempted her more and trapped her in a cage only to watch her from afar. Watch his prize possesion from afar and listen to her cry. He fed on her weakened heart and even more wounded mind. But deep down, that boy was still there, begging for freedom, but there was no way out, and he was locked away, just like she was.