Yumi

I vaguely remember watching the Japanese version and the movie sequel but I don't believe they were the same as this drama.

Because if I remember one thing, it's that the Japanese one didn't have a good end at all, not the show nor the movie xD and I dare say, as should be!!

I can understand how they went with the story, even the cheating characters and the reason behind it, but I can't for the life of me understand Jung Woo's wife "Min young".
Honey, if someone marries you to get your ass out of a messy infidelity relationship, and you leave this guy for 3 years alone to achieve your dreams in a another country then he asks you for a divorce! You give him one!! Because the whole "good wife" character isn't you!! You did the same before so if your husband cheated, you should not dare to act hurt or confront him and force him into a relationship with you!! You reap what you sow !!

Now for other characters
FL: coward 1 ... Because I don't think your husband being a nice guy is a reason enough to not ask for a divorce if you can't breathe without the ML... Just divorce him, because after all this mess, you will end up divorced anyway, and even if we put cheating aside, girl!! The way he treated you Vs the birds?? FFS why are you with him?? Because Nice isn't a quality enough to keep you married to him, so he treated you badly, didn't notice when you are sick or even care about you, moreover you have a sexless marriage for 3 years??? 3 FREAKIN YEARS, MATE!!! And not to mention his intrusive mother who keep stressing you about kids while it's her son's fault!! What exactly were you waiting for to leave?? What made me more furious is the fact that by the end of the series, he is now married with a child! C'mon! If you don't like your wife enough to sleep with her or she can't make you"get it up", then leave her don't push her into a marriage that is useless for both of you ~

ML: coward 2, what's keeping you in this marriage? Give me one reason to stay in it? You have never loved her, never cared about her, she belittles you and low-key ashamed of you, she leaves you behind for 3 years and come back after learning with your money to look down on you... Tell me again why are you in this relationship???

SFL: now here I kinda see a reason to stay in this damned marriage, 2 kids one of them is practically a baby, still the husband is terrible, I don't understand one thing, you were this open brave woman who cheated repeatedly with literally everyone and you were so out and about, telling people you don't even know about your rendezvous openly, then oh my god my kids!! My husband caught me!! And I can't live without them, you suddenly remember that you are a mother? Oh please!! You are a great mother for sure, but you saw that coming ~

SML: Mr. Enigma... I just don't understand him, so I'll just leave him be~

One thing I didn't like generally about this show is so many intrusive characters, like the high schooler kid? Wtf is wrong with you!! If you have a family situation just focus on your family, don't go and snoop around other people's affairs!! And the hoobae in FL's husband's office, girl get a grip!! You have this long confrontation with the FL about her husband while you practically did the same, you kissed a married guy and keep popping up everywhere he is!! So how dare you, bitch!!!

Lastly, I think this one was more sugar coated version, and slightly stretched, I don't think this needed 16 episodes it could be 12 and that would definitely be more than enough ~