The old man who reads love stories might have discovered new perspectives on love, as well as insights into how people handle love and its challenges. Maybe it has even taught him something about his own life and relationships.
Perhaps the old man has learned about different expressions of love and the complexity of human hearts. He could also have picked up lessons on empathy and compassion from the characters' experiences.
The old man might have gained a deeper understanding of human emotions and relationships through the stories.