Anxiety engulfed Eun-sun as she anticipated Dan-Han's return. The frost that broke through his voice before he intercepted the call had chilled her out, and she knew he was displeased. Dan-Han was that man who wanted her to be comfortable and happy. He has been doing his best in the past few days not just because he still bore the guilt of her predicament —despite her endless plea for him not to do so — but because her happiness was his happiness, he has shown it in so many ways, and she knew just how protective he was of her and how he wanted her back on her feet again, or rather her other broken foot.
Eun-sun wasn't scared because Dan-Han wasn't a violent man, so he'd never do anything to hurt, but he was scheming and creative in his punishments.