I think it varies from person to person and requires free will choice. The so-called mutual and forgetfulness of the river and lake has a great premise is the spring dry. If there is no premise, there is no following. Springs dry can mean love, work or anything with a wide range of content. There is no need to seek a definitive answer as it covers life and death. As far as the text is concerned, our love and hate, life and death are accomplished under the condition of fountain-dry. If we are happy every day, why should we choose to be with each other and forget each other? We can choose joy and happiness. But it is precisely because of the "dryness of the spring" that we think about how to do better.
The so-called "mutual love" and "mutual forgetting" both have a big premise about the spring is dry. Without the premise of the fountainhead, there would be no content behind it. The meaning of the term "fountainhead" is very broad, and can be anything from love, to work, to anything. The reason there is no need to pursue a definitive answer is that it all encompasses human life and death. As far as the text is concerned, whether we love or hate, live or die, it is all accomplished under the condition that we have a spring of life. If we are happy every day, why do we have to choose whether to be together or to forget each other, we can choose to be happy and joyful. But it is precisely because of the "drying up of the spring" that we think about how to do it better.
In terms of life and death. As far as I am concerned, life and death are life in many cases. There is nothing more poignant than life and death. Whether it is life or death, it is a state of being; life means being together and forgetting each other, and death is the same thing. Life and death, love and hate, we are relatively calm people, do not deliberately love and hate.
Some people say love is letting go, while others say love is holding on. Holding on to each other is I love you, and forgetting each other is I love you. In this cold and realistic world, we long for love, we think and are touched because of the story of two fish. Since you can't be with each other, let's forget each other on the stage. What a touching story. What is true commitment? I think no matter how the other side, whether together or not, I will always keep your exclusive position in mind, will not think of it from time to time, but also always keep your exclusive memory.