Responses
I think when reading the comments you can tell who's been through a pregnancy or at least around a pregnancy enough to know how it changes a woman. The smell thing brought me back to my first pregnancy and how sick I got from smells or even thinking of food. You just want to leave where that smell is in hopes you can stop being sick.

you guys are questioing why Heewon would feel that way and want to leave from her own home. guys, she's pregnant and was literally just sick because of it. as you know its very normal during pregnancy and one can get very hormonal as well. these feelings are very normal for a pregnant woman to have and with a woman thats chasing after your husband, and heewon doesnt know much about her husbands past and background. it's not surprising for her to jump to conclusions.
i hope those who are acting as though she's dumb/stupid keeps these points in mind