I have many problems with this game's approach to romance (and a ridiculously lengthy post in the works), but I would hardly conflate bloodsucking with rape, regardless of the tired "sexy vampire" trope. I think him creeping through the camp at night is a good way to make the "reveal"... but I do wish he didn't have the personality of the most stereotypical meme-y bard.

I take it you weren't showered with indecent proposals from the companions at one moment, as some people were?