Final answer:
Hsaing-ling's life changed dramatically when her husband Gil-Dong felt the need to mourn his deceased father, leading to a period of sadness and fulfilling familial duties.
Step-by-step explanation:
After being married to Gil-Dong for several years, Hsaing-ling experienced a dramatic change in her life when her husband sensed that his father was either dead or dying. Feeling it was his duty to mourn at the grave, Gil-Dong departed with items for the burial and gifts for the kingdom.
Upon confirming his father's death, he oversaw the burial proceedings, mourned, and then returned home with his mother. This event significantly shifted the dynamics of Gil-Dong's and Hsaing-ling's lives, bringing a period of sadness and duty into their otherwise happy and content life.