Ask the meaning of the lyrics

When I came here, I was carefree, and when I left, I was worried.

So it's easier come than go.

In troubled times, people who love each other are easy to separate, but it is difficult to be together.

It will be better understood if you watch Sanmao's play "Rolling the Red Dust" or Yim Ho's movie of the same name. This film is good, starring Qin and Han Dynasties, Brigitte Lin and Maggie Cheung.