"Don't worry, I can keep a secret," and Sookie could keep secrets particularly where she was concerned. At least she hadn't told him about her being a fairy.
"I come from Bon Temps and there were lots of monsters. Several tried to kill me, but I always manage to come out alive." Back then she'd been with either Bill or Eric. She didn't have them to save her anymore. For a moment she was panicked, but she was doing quite well on her own that fact made her feel better.
"The worst monsters are the human kind," she said honestly.