Answer:
Gentle, daydream.
Explanation:
Romantic stories are supposed to be relatively soft and love-filled. This means that most actions are soft and flowing from one partner to another. It could also feel like the whole thing is a dream, causing the couple to consider the relationship in a more loving way. The other options are keener to horror/sci-fi novels because it's actions and feelings of outside influences.
I would say "between" because it is a preposition.
maturity is about the way you act and interact with the world around you.
