"I swear I'll come back," she whimpered. "Every night at 7:00 sharp to feed you. I'll even sit and talk with you for a bit should you so desire it, but please let me go. It's for your safety as well as my sanity!" She could hardly believe she didn't want him dead. She should pray that they kill him, but...but she didn't want him dead.
When he brought his fingers to her mouth for her to suck on them, she complied. Perhaps if she did everything he asked of her, he'd let her go.