He comes suddenly and leaves suddenly.
Five years ago, he said he would protect her, but he left when she was most helpless. She had liked two people: the first person, whom she secretly admired for two years, rejected her a year later and wrote a memorial to persuade her father to send her to get married.
She asked him why?
He said: She is the princess and he is the prime minister. This is his responsibility and hers.
The second person, he had been with her for many years and said he would protect her, but he left her when she got married.
He said: His duty has been fulfilled.
But... Did he forget that she was there...
Purpose: Responsibility