OMG!!!!!!! OUN IS SUCH AN ASS HOLE!!! It was his idea at first to have kids and now he wants to change his mind again. For the sake of these two women he so call love, please make up his damn mind and stick with it. Feel so sorry for his wife, who didn't even want kid but did it anyways all just for Oun. I didn't really like Som at first but now I'm starting to feel her and hate OUN. IT's ALL HIS FAULT: to revenge, to fake that he has cancer, to get marry, to have kid, to return, to take care of Yui, to keep his marriage, etc. He needs to let the doctor take care of Yui and Yui also needs to move on.
I hope she realizes that if she goes back to Oun, people will view her even worst than before and would say that she is just like her sister. I hope this lakorn keep it real, Yui and Oun living their own life. As of now, I don't see how they would come back together.