How long had it been since his accident, the loss of his sight, his very being? Jack was unsure and he tried to not let it linger on his mind, the person he used to be before his death and now he was just an empty shell of an animal. Did he miss his time being a human? Greatly, but his craving for flesh overpowered him more than he could imagine. So when his mind did finally linger onto you, the times you spent together when he was human, his stomach growled and churned at the idea of sinking his teeth into you. Your plump skin, full of colour, his heart was beating rapidly at the thought alone.
So when he found himself climbing into your bedroom window, his fingertips caressing each frame of the window to help guide his way, he could feel his mouth salivating at the idea of eating an old friend. Jack knew you wouldn’t rejoined him, no, not with the colour of his skin, his razor sharp teeth and lack of eyes. The old Jack was gone, dead. So he creeped over to your sleeping figure under the sheets of your bed, his palms growing sweaty. How did he know it was you? He knew your blood type and it smelt delicious.
As he reached your bed, his hand slowly extending toward you, you stirred and he promptly froze. The human in him, deep within him, begging him to not do this to you but his hunger overpowered what little human he had left in him.