Meng Xiang, who was far away in Mingsha Mountain at that time, did not notice the meaning of Zhou Shixu's silence in the promised phone call. She thought that Zhou Shixu could at least wait until she came back.
It turns out that Zhou Shixu said that the next meeting would be in front of his tombstone.
It wasn't until he actually stood in front of the tombstone that Meng Xiang realized why Zhou Shixu was so sure that he would bring flowers when he came back.
Concept: Love is an eternal moment