Looking for a book that contains a young exciting romance, but has darker elements or some kind of mystery!

I love how in young romance novels the love feels so fresh, new, and exciting, but I also love when there is a mystery/psychological thriller element! I am open to any kind of horror/supernatural/thriller element! I also kind of love specific romance troupes such as enemies to lovers, girl next door, childhood friend etc! I’m sorry if this wasn’t a great description!