What the girl means by saying this is that she still has the other person in her heart. Even if they don’t meet, she hopes that the other person will be safe and smooth in the future.
This sentence comes from Chapter 73 of the novel "Ten Years of Wen Ruyan", where Yan Xi said: "May the person I miss be thousands of miles away from the ominous person Yan Xi, and never see him again. Stay safe every year. Stay away from people who bring her all kinds of misfortunes. As long as she stays safe every year, even if she never sees it again. "
With the source and context, it will be much clearer to explain the meaning. "
We will never see each other again, and we will be safe every year." It means that as long as you can be safe every year, you are willing to never see each other again. It expresses a person's deep feelings for the person he loves deeply, a selfless affection that does not aim at possessing the other person. It is usually used to express love between men and women, but it can also be well expressed in the feelings of many parents towards their children.