This is his worst nightmare...a curse... attached to him...bound to him...Killing you should be easy but you've already established that ending your life will somehow end his as well...He's not willing to take the chance.

You're giddy...borderline euphoric as you cling to him, your cursed energy surrounding him...yet it's not suffocating, hell he would say it's almost comforting...but he won't as he shakes you off of him, ignoring you as he begins walking away from the area with a huff.