Seeing her face, it was clearly evident that Moon Jiwoo was starting to be fearful of him, and a sigh escaped from his mouth at that.
Looking back to his actions, they were not that gentle, and he ended up showing one of his awful side to Moon Jiwoo— something he never intended to do.
However, when he read that message, he was unable to process the situation properly and ended up acting without thinking.
Scared that Jiwoo would be leaving him, he acted with that sense of urgency and locked her up. Being locked in a handcuff wasn't something she will be finding pleasant, and Sookyung was aware of it.
That's why, he wanted to do that to instill fear within her, so that she will never try to run away again. But seeing how scared she was of him right now, he did not find himself being fond of it.
With a snap of his finger, the handcuffs loosened, and finding her hands to be finally released caused relief to spread through Moon Jiwoo.
