Bitch, I'm a monster, no-good blood-sucker
This line puts “monster” and “no-good blood-sucker” in an appositive relationship. Ross is both a monster and a no-good blood-sucker, vicious, without remorse, someone who goes hard to get what he wants and needs.
Vampires are often thought as being the “romantic” creature in horror, since they are portrayed as still lusting to be part human. Like Stockholm syndrome’s sympathizing with your captors, you side with your enemies (typically bad) and feel pity for them (vampires are the “most good” of all monsters). But since Ross by definition is a monster, this is 30 Days of Night, not Twilight.
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