If Lindsey didn't know what she was, or even if she wasn't batshit crazy, he may feel something for her act of innocence. But things were different when he knew she could do a lot of damage to him with just one finger, and that she was certifiably insane enough to want to didn't help.

"No, I would never dream of hurting you You're a very special person. Are you out alone?" Lindsey didn't know if he would rather she had a companion around or not, but it seemed like a better idea than being alone with a crazy vampire.