Back in the day monsters were used to scare or shock them, they were ugly and different. If you look at Frankenstein, he’s deemed a monster or demon for most of the book. The only person to show him kindness was the blind man. In other older books most people fear or want to kill the monsters in the books. But if you look at today’s monsters we have vampires falling in love with humans, werewolves getting with humans. There are still stories where real life monsters like killers and such are made to scare you but not as many fictional monsters.
hopefully this helps and gives you some ideas on what to write, let me know if you need more examples!!
