DNA Lover Episode 3

I like the So Jin much better now.

In the beginning, I thought that I would never be able to tolerate a character like So Jin. But she has grown on me. She is far too erratic for my tastes, but there's another character that I dislike much more, her mother a woman who should have never given birth or have had the choice to abuse her children in this manner. The ending of the episode leaves far too many questions, if I heard it correctly and according to their description of this cheater gene, it isn't Sim Yeon U but Seo Gang Hun who has only loved one woman who has the cheating gene.