Vampires have always held a very seductive kind of lore and have always been some variety of attractive whether it's attractiveness that's born of just the physical attributes that they have - this kind of ethereal beauty or translucent pallor - or whether it is more to do with the way they carry themselves.
People say 'Just say who you're dating. Then people will stop being so ravenous about it.' It's like No they won't! They'll ask for specifics.