Sorry but... wtf is going on?
She completely lost it... but hes also awfully naive. She suddenly became in heat and is forcing herself on him in a single night.
Feels like she might become even worst than before if he reject her at any point.
Ifeel bad for Sung-hwa that gave 6 months of her life to help him while his fooling around elsewhere. Im not sure if she has any feelings for him but at any rate him focusing in love affairs wouldnt help Sung-hwa goal at all.