There is a plot in the island horror film that I don't understand. Is the heroine's husband killed in the war? Please answer those who understand. Thank you.

That is, her husband died first in the war, and then their whole family died. The ghost the heroine plays for is actually a human being, and she just doesn't want to face death all the time. I feel that her husband's return seems to imply the fact that she is dead, but she still didn't face it until the end of the movie.