I must say that I felt hooked because I was waiting for the main character to finally win and get her revenge--but I wrong for rooting for her because she is stupid. She keeps getting entangled with her husband who was not worthy at all. How I would breakdown the plot:

Episodes 1-4 = pretty much Tae-Ho gaslighting Sun Woo that he is not cheating

Episodes 5-14 = revenge going back and forth, no winner but everyone is a loser; both parents emotionally abusing the kid / Jun Yeong

Episode 15-16 = pure trash; Sun Woo trying to be a saint saving his trash ex

That's pretty much it. A trash I would not recommend because there is no character development. Sun Woo could have been a better character if she was not stupid. She keeps on telling that she wants everything for Jun Yeong but keeps exposing the kid to the wrong environment because she is selfish and have other motives.

Best ending goes to Ye Rim. Girl freed herself from stupidity.