In novels, there were usually several ways to express the unforgettable love between a man and a woman: 1. The first encounter and contact in the early stages of love shows the chemical reaction and emotional resonance between the protagonists. Through the description of the protagonist's inner feelings and actions, the reader can feel the attraction between them and the process of their feelings sprouting. 2. Show the misunderstandings, conflicts, and tribulations between the protagonists, as well as their efforts and persistence in emotional entanglements. These plots could allow the readers to understand the protagonist's inner feelings more deeply and also add more emotional value to the love between the male and female protagonists. 3. Description of the interaction and communication between the male and female protagonists to show their tacit understanding and trust. Through dialogue, actions, and detailed descriptions, the readers can feel the deep feelings and sincere emotional exchanges between them. 4. It shows the change and sublimation of love between the hero and heroine. After experiencing setbacks and tribulations, the feelings between the hero and heroine may undergo subtle changes. The feelings between them may change from the initial passion to a deeper emotion or through some special moments and actions to show the sublimation of their love. 5. Demonstrate the eternal meaning of love between the hero and heroine. Through some special experiences and events, they showed that the love between them was not just a momentary impulse, but an eternal emotional bond. These plots could allow the readers to have a deeper understanding of the value and significance of the love between the hero and heroine.