I have seen this question debated across the internet almost to its death, and while the answer to it is complex, layered, and quite varied from one reader to the next, I’ll make this easy by speaking for myself. I think it’s popular because it’s safe. Dark romance is a subgenre predominantly written and consumed by women. It gives us a place to explore some of our more taboo desires, to work through past trauma, knowing that this time, we can simply close the book to end the experience, or, to read about love interests that are so obsessed with their counterparts, they would do absolutely anything for them.