As a writer, it's fun to create. And once you get into a long-running show with very established characters and a very established tone and format, after a while it's a really great job, but that's what it is - a job.
It's easy to look at the vampires as a metaphor for any feared or misunderstood group. It's also easy to look at them as a metaphor for a shadow organization that says one thing and has a completely different agenda on their mind, and anybody who gets in their way, they just get rid of them. Does that sound familiar?
I think all writers are armchair psychologists to some degree or another, and I think a character's sexuality is fascinating. It's a great way to really get at the root of their identity, because it's such a personal thing.
I'm aware of 'Twilight,' but I've never seen the movies or read any of the books. Frankly, the story leaves me cold - why do a vampire story about abstinence?
As a culture, we are not comfortable with mortality. We do not accept it the way other cultures do. We cling to youth, and we don't want to die. It's like, 'Well, too bad, we do.'