Later I found out
Zhang Yuncheng waited until Qinghe said "I love you" but could not hear "husband". Zhang Bili waited until Wenwen said "husband" but could not hear "I love you" again.
Qinghe never heard Zhang Yuncheng's "I love you too" before his death, and Wenwen could not wait for the light "I like you" in his life.
They ensure that the people live and work in peace and contentment, and allow lovers to finally get married. In the end, they are the only ones separated by life and death.
Intention: There are some things that you think you are letting go of temporarily, but in fact they are missed for a lifetime.