I saw this one pop up again in a story I was reading. It had the kidnapee/kidnapper romance thing which is weird. But another "trope" that I saw that made me cringe was one partner essentially has to sacrifice their whole self for the sake of their partner. I'm not even talking about in the larger than us, self-sacrifice altruistic type love.
I mean, you have a human or weaker partner who falls in love with a significantly stronger partner. Human/Vampire/Werewolf/Insert monster of choice. I know there's been a lot of comments about the problems in these types of relationships, but this story just got me thinking about how many times I see young women in these stories forced to give up their life for the sake of their partners. They even have to beg to do something as "simple" as finish high school. Every time I read it.