Who was the author of this story? Or rather, which book did this story come from?

In a very quiet and beautiful town, there was a pair of very loving lovers. They went to the beach to watch the sunrise every day and went to the beach to watch the sunset at night. Everyone who saw them cast envious looks at them. However, one day, in a car accident, the girl was unfortunately seriously injured. She lay quietly on the hospital bed and did not wake up for several days and nights. During the day, the boy would stay by his bed and call out to his unconscious lover; at night, he would run to the church in the town to pray to God. He had already cried out his tears. A month had passed, and the girl was still in a coma. The boy was already haggard, but he was still struggling to hold on. Finally, one day, God was moved by this infatuated boy. Therefore, he decided to make an exception for this stubborn boy. God asked him,"Are you willing to exchange your life for it?" "I do!" The boy answered without hesitation. God said," Well, I can let your lover wake up soon, but you have to promise to become a dragonfly for three years. Are you willing?" "I'm willing!" the boy replied firmly. At daybreak, the boy had turned into a beautiful dragonfly. He said goodbye to God and hurried to the hospital. The girl was really awake, and she was talking to a doctor beside her. Unfortunately, he couldn't hear her. A few days later, the girl recovered and was discharged from the hospital, but she was not happy. She asked around for the boy's whereabouts, but no one knew where the boy had gone. The girl kept looking for him all day long, but the boy who had already turned into a dragonfly was always around her. However, he did not know how to shout or hug her. He could only silently bear her ignorance. Summer was over, and the cool autumn breeze blew the leaves off the trees. The dragonflies had no choice but to leave. So he landed on the girl's shoulder for the last time. He wanted to use his wings to caress her face and use his small mouth to kiss her forehead, but his weak body was still not enough for her to notice. In the blink of an eye, spring came. The dragonfly couldn't wait to fly back to find its lover. However, there was a tall and handsome man standing beside her familiar figure. At that moment, the dragonfly almost fell from the sky. People talked about how seriously ill the girl was after the car accident, how kind and cute the male doctor was, and how their love was taken for granted. Of course, they also described how the girl was as happy as before. The dragonfly was very sad. In the next few days, he often saw the man take his lover to watch the sunrise by the sea, and then watch the sunset by the sea at night. He could do nothing except occasionally land on her shoulder. The summer had been particularly long that year, and the dragonflies flew painfully low every day. He no longer had the courage to approach his former lover. The whispers between her and the man, their happy laughter, all made him suffocate. In the summer of the third year, the dragonfly did not visit its lover often. The male doctor was hugging her shoulders and kissing her face. She had no time to pay attention to a sad dragonfly, nor was she in the mood to reminisce about the past. The three-year deadline promised by God was about to arrive. On the last day, Dragonfly's ex-lover and the male doctor had a wedding. The dragonfly flew quietly into the church and landed on the shoulder of God. He heard the lover below swear to God: I do! He watched the male doctor put the ring on his ex-lover's hand and then watched them kiss sweetly. The dragonfly shed sad tears. "Do you regret it?" God sighed. The dragonfly wiped her tears. God said with a trace of joy,"Then, tomorrow you can become yourself again." The dragonfly shook its head and said," Let me be a dragonfly for the rest of my life." Some fate was destined to be lost, and some fate would never have a good ending. Loving someone didn't necessarily mean possessing them, but possessing them meant loving them well. Please tell me the correct answer. Thank you in advance.