[And the confusion makes him back-peddle a little, he might be over-thinking a bit now.]
If... you've lived so long, that means you're not human. An' there's lots of vamp'rs here. I once knew a Maenad too. There's plenty of non-humans.
[Try not to let your ego run away with the idea he thinks you could be a god... Also kind of trying to give the feeling of, hey, I'm used to this, you can trust me.]