Heh.. not a fan of Twlight either. I hate to admit though, but I'm probably somewhat like that character. i.e. I'd make a lame vampire. I'm not sure why it's popular though. People could say that the author is trying to promote an old fashioned sense of romance, and that some women really want that, and that it's all missing in this day and age blah blah blah. But I have a hard time believing it. The reality is that you get laughed at if you look down on sex before marriage.
Anyways, that's not about horror. As for that, I've never particularly been fascinated by it. If anything, I might channel more of my "dark side" with music - but even then, I'm gravitating more towards just song structure, melody, etc.. I've never admired the villains in stories. At worst, I've been fascinated with the sick "grey area" misanthropists, like Edmond Dantes or Travis Bickle.