Seeing that you need a novel to teach you sweet words, I recommend a modern romance novel called "Suddenly Looking Back, My Feelings Are Deeply Lost" to you! In this book, the male protagonist, Yi Wangshen, started to study relationships because he was stupid. Later, he learned some corny words to coax his girlfriend and even gave his military dog to his comrade, which touched his girlfriend. The usage of these sweet words is very practical. You can also learn from them to make your girlfriend happy! I hope you like this fairy's recommendation. Muah ~😗