'Queen of Tears' Kim Soo Hyun, Park SungHoon next to Kim JiWoowon... 'Display area' due to jealousy?

*Contains plot summary and spoilers. Kim Soo Hyun attracts attention as she is caught up in an ambiguous feeling, whether it is jealousy or alienation.
In the tvN Saturday and Sunday TV Series "Queen of Tears" EP4, which will be broadcast today (17th), Baek HyunWoo (Kim Soo Hyun) will meet Yoon Eun Sung (Papa) who has come between the couple.
Koo Sung Hoon) becomes nervous. Until now, Baek HyunWoo has continued to express his wariness towards Yoon Eun Sung, an alumnus of his wife Hong Hae In (Kim JiWoo Won).
This is because Yoon Eun Sung, who emphasized that she was close to Hong Hae In every time they met ever since they first met at a party, bothered her.
Furthermore, Yoon Eun Sung not only drinks until she gets drunk alone with Hong Hae In, but also talks to Baek Hyun Woo as if he knows her better than her husband.
He even gave me some advice. In the end, Baek HyunWoo's patience is gradually running out as Yoon Eun Sung's actions increasingly cross the line.
Among the photos released under these circumstances, Baek Hyun Woo and Hong Hae In enter the house of the couple.
Yoon Eun Sung's appearance is included, arousing curiosity. Hong Hae-in and Yoon Eun-sung are doing business at home in order to enter the ``Helkina'' store, which is an essential element to enter the 1 trillion club.
We decided to have a meeting. Unlike Hong Hae-in's serious expression, who is concentrating on work, Yoon Eun-sung's smile lightens the mood.
Meanwhile, Baek Hyum keeps an eye on the two during the meeting for a while.
Eyes on Hong Hae-in and Yoon Eun-sung, who have fallen into a world of just the two of them.
From Tsuki, I can feel a subtle emotion that I don't know if it's alienation or jealousy. Baek HyunWoo, who feels a sense of crisis that their marital boundaries have been violated, appeals to Yoon Eun Sung about their marital relationship.
We plan to begin displaying the area in a certain way, such as by doing so. Will Baek HyunWoo be able to separate Yoon Eun Sung from his wife Hong Hae In?
I wonder what the true nature of this emotion is. Meanwhile, all this content can be found on tvN Saturday and Sunday TV Series 'Queen of Tears' EP4 at 9:10 pm today (17th).