I would rather run alone in the sunset than turn love into tears in the world of mortals. What do you mean?

Things are impermanent, a casual smile and a tear in the world of mortals will become a lifetime. Some people lose themselves in the world of mortals, and their lives are arranged by fate. Some people see through the world of mortals and look for another world. They would rather run alone in the sunset than turn love into tears in the world of mortals. With initial stubbornness, I met this one many years later.