Still on the bed, Eun-sun kept pondering on what Dan-Han had said. She needs to be strong, he had said. But how? Wasn't she strong enough? Or did Dan-Han mean a different kind of strong?
One could be physically strong but could lack in other aspects like their emotions. Was that what he meant?
Eun-sun already prides herself as a bold and strong person, but only Dan-Han could see a weakness in her, and that made him care for her differently than every other person has ever done.
He cares for her, provides for her and protects her and she hasn't done anything for him. All she has done was hurt him and cause him trouble even though she doesn't meant to.
It was about time she did something for him. She has to protect him the same way he has always protected her. And she would do it. All she had to do was look for a way to do so.