I have also seen Dark romance been called a trope, and been given the feeling a Vampire romance is somehow boring and overdone. But I have not seen any romance like Astarion and Tav in any other game I have played. I think it is really unique the way it is done in BG3 and the story is really good. I just hope it isn't thrown away for the sake of making something "exciting and new" because it truly is excellent as it is. Name me a game with a Dark romance as deep as you can get with Astarion and I will happily look it up.
Honestly I haven't seen many dark vampire romances like Astarion's in any media, period. The closest analogies I can think of are Spike and Buffy, and maybe Lestat/whover he's macking on in any given book. I know it's variable because Tav can be played in several ways, but I'm more thinking about dark romances with vampire or vampire-like characters (I know a lot of people compare him to Jareth but Sarah is literally a child so that doesn't count to me) where the vampire has a really strong, charismatic personality. I've been burned by a lot of books that promised me a spicy vampire romance but the vamp in question was just...a depressed wet noodle.
