I can't see the point of letting he kid see her in that position

She is a nut job there is no reasonable explanation. I somehow had a feeling this was what she was gonna do though. I mean considering how twisted she is.

I don't know for sure what she was planning but it was definitely haunting Sangwoo for the rest of his life :'> So haunting that it makes Sangwoo the kind of murderous psycho he is right now ╥﹏╥