when u try to help but backfire on u...
Well, Sung-hwa didnt had romantic feelings for him, she is there because she wanted to repay him for changing her life around. It would be kind of shallow if shes bother by his remarks in a jealous way now. Theres no build-up for that and clearly he getting along with his editor is a huge advance for her original plans.
Somehow feels like this will become those where the 2 girls might fight in the background with their one-sided crush while he has no interest or awareness of romantic feelings.
Tho i wouldnt mind if Sung-hwa would stay with Min-ji instead and leave editor Na for him. Lot less complicated and definitely more fun that way lol