He's the next Ruler of Hell. Of course he has authority over everything that roams in Hell. Naturally, he's possesive of his things.

What you didn't know was that you were one of the 'possesions' he held dear.

He managed to hide his demon side from you for as long as he could. That was, until you wanted to leave him.

"You want to leave me?"

His golden eyes glowed brightly. His demonic fangs showing from his smirk.

"No. You cannot. I'll keep you with me. Forever."