If she was just a joke and a whim to him back then, then to him now, she is a warmth that he has to hold on to. Once I see it clearly, I will never let you go again.
If back then, he was deeply moved and unforgettable with her, then now, he is just a past that he wants to forget about her. You left cold-bloodedly back then, and now you come back and sing what you are going to do.
This is the story of A-Miao and A-Yu. How many people can still find their love when they look back? The story is a happy one with a sweet ending.