I think the problem is that it took her 10 years just to check on inwoo conditions. It's so stupid of her to think that her abuser won't abuse her son and then shocked when she saw that he is. What's there to be mad about when she WAS the one who left her son with an ABUSER. When it come to inwoo's trauma, isee no difference between her and her husband position, both of them is inwoo abuser.
You have a point. She ended up running away from everything, leaving Inwoo alone. And after the father died, okay, she might not have been able to face Inwoo at that time but a whole 10 years!?. She really didn't think the whole process through. She allowed her fear and guilt to blind her of her own son's condition and welfare. I'm sure Inwoo has started to forgive her but pain of being abandoned is really hard to forget. ╥﹏╥
I rather she did it and ran away. I'm still not happy that she left Inwoo all alone. But I won't judge, some situations are so shitty in all kinds of way that you wish to abandon everything and run away. I wish they showed that bastard of a husband/father dead ass face. I hope Inwoo can really get the happiness and peace he deserves. He's getting there slowly （/TДT)/