There will be many passers-by in a person's life. Once we are separated, we may never see each other again. I don't know if I will become a passer-by in your life." You joked: "We will definitely become passers-by in your life. You are so annoying and difficult to control, and you can make people mad all the time. I definitely want to be a passer-by in your life." To answer this, I could only remain silent.
Since then, we have really become passers-by in each other's lives, just like a lyric goes: "I have cut off contact with you and will never contact you again. The blame is that we were not together in the first place."