Sell Me A Pill Called Regret

In her previous life, she saved him, trusted him, loved him, and traded her life for him.
He lied to her, betrayed her, destroyed her, and killed her with his own hands.
She cursed him for having an immortal body, but he suffered from the pain of the burning heart day and night, and his soul was tormented.
In this life, she had forgotten everything. With a smile like a flower, she stood in front of him and asked.
"Fu Yunzhi, the world is filled with men and women. Is your medicine of regret really something anyone can cure?"
Fu Yunzhi laughed, "From ancient times until now, the doctors have always been ignorant of the doctors. My medicine can't cure it. "
"Then what should I do?"
"In the Spring Festival Gala tent, take it by the pillow."