Edward: "I'm the wold's most dangerous predator. Everything about me invites you in. My voice, my face, even my smell. As if I wouldn't need any of that. As if you could out run me. As if you could fight me off. I'm designed to kill." Bella: "I don't care." Edward: "I've killed people before."
Edward warns Bella about him being a vampire and how dangerous it is for her to be around him but she doesn't care.