What happened?

I think she realized that Skylar has someone who loved him (i dunno, just thinking ok?) And changed her mind, over time she got jealous because her husband dont love her or something and she tries to destroy the feeling yeonduk had, also her son,
Or,
She thinks shes doing whats best for her son, so her son diesnt have to go through the pain of love?????

Because she's crazy and rich. Somewhere in her mind, she knows that what's she's doing is wrong. So what could she do? She can't have other adults taking care of Skylar too much. That looks weird. So she made Yeonduk his pseudo guardian. Because, when you look back, Skylar acted better for Yeonduk than his mom. She didn't kill Skylar because she knew that Yeonduk would miss him. SOMEONE would miss him.

As the other stuff. What she was trying to do was enforce Skylar parentally through Yeonduk because she couldn't stand to do it herself a lot and Skylar acted better ONLY for Yeonduk. But other times it was really just a mix of her not caring and Yeonduk really liking Skylar. Sometimes it was just easy. For example, she was going to throw away Skylar's guitar. Yeonduk saw that and took it just so it wouldn't go in the trash. Skylar asked what happened to it and she says "Yeonduk wanted it so I said he could have it". It's not untrue. She's not trying to trick Skylar. That she wanted it trashed is just irrelevant news to her. When they were kids, she used Yeonduk for information but she didn't say that. Skylar just narrowed down how his mom would learn of certain things and came to the conclusion that "Yeonduk must be telling her my secrets in exchange for the nice things that my mom does" instead of "My mom tricked him into it like she tricks me into stuff". Eventually, Skylar also learned that he could use Yeonduk the same way his mother did. So I'd say, she just wanted to make it someone else's problem but she also just doesn't like Skylar for the most part.

It'd be nice if she ended up not MEANING to be a bitch, i'm still confused about when Yeonduk tells Skylar to "just talk to her" about fencing and she just... Let's him quit. Despite all the trouble she put Yeonduk through about it. I feel like there is the possibility that she really does think that Skylar wants these things, or like in the case of the guitar she just doesn't realize they're important to him. I mean, if this is true, then from her perspective she's raised him thinking what she's been doing is fine and that Skylar isn't acting out because of HER, but just because he's a bad son. She MIGHT be thinking he's just spoiled. Everything she does ends up pissing him off. Hence her bring a 3rd party into the mix, Yeonduk. If it looks like Skylar is going to be "a brat" (i.e. she doesn't realize she hurt him), she can deflect the blame and his "anger" (really his hate) onto Yeonduk. She then pays Yeonduk for his scapegoat services. Or... She could just be a bitch, we'll see. ╮(￣▽￣)╭

I think that it's because there was finally some push back from someone she holds to a higher standard. It's been made pretty clear that she thinks things concerning Skylar are fine if Yeonduk is there and Yeonduk said that Skylar hates fencing. I think it's like earlier, when Skylar and Yeonduk went to that party together over night. It wasn't okay if he went alone but if he went with Yeonduk then SKylar basically had free reign. Yeonduk is the same age as Skylar. Yeonduk could be out drinking under age or having sex or stealing etc but she never even considers it a possibility. That isn't because she knows Yeonduk so well. It's because she thinks lowly of Skylar.

Isn't it because she's paying him that she "trusts" him? Also, Yeonduk wasn't there when Skylar asked to quit fencing, it looks like he just had to talk to her and make it clear he didn't like it. Yeonduk told Skylar to "talk to her", maybe because he thinks she DOES care about him? I agree that she has a low opinion of Skylar, though like i said, i feel like it COULD be a misunderstanding between all three of them. Maybe. Maybe his mom isn't INTENTIONALLY being a bitch, maybe the things she did to make Skylar hate her weren't on purpose and it's a misunderstanding between the two of them with her thinking he's just a bad/spoiled son who lashes out at anything she does (insert the Yeonduk shield to absorb the hate directed at her) and him thinking she's trying to ruin his life when she's just bitchy/businesslike and SUPER dense? Maybe. I think it'd be more interesting if the plot allowed her some character development instead of leaving her the villain. We'll see. ┑(￣Д ￣)┍

Yeonduk told Skylar to talk to her about fencing after Yeonduk already went to her and yelled at her for making him fence even though he hates it. And remember, she doesn't pay Yeonduk officially or anything. Yes, she helps out his family but I don't think he knows that Skylars mom helped with his dad's job. He does get an allowance from her but that's actually not that uncommon in Korea to do between close families. She giving him pocket money, not a salary.

All I'm saying though, is that she is crazy regardless. She tried to kill Skylar twice. That's not just being dense and b*tchy.

I know she tried to kill him once, but i don't remember a 2nd time. The idea in what i'm proposing is that after the 1st time she came to care about Skylar in her own way. I can't agree on the payment just being "pocket money", i see what you're saying, but it's pretty heavily implied in the manga that its for his "services". To the point that i don't find it worth considering otherwise tbh. As far as Yeonduk having talked to her first, sure, but that ended in her asking if he was done and him leaving. That, and if you think about it, what you just said fits with what i'm hoping will happen. It'll mean that she finds out Skylar hates fencing and lets him quit. I.E. she didn't realize he hates it and when she did she stopped "forcing" him to do it. I mean, MAYBE he buttered her up for Skylar? Again, who knows? That isn't said explicitly or even implied. We can agree that she WAS crazy, now all that's been shown SINCE the crazy is that she's an underhanded bitch who doesn't go out of her way to be nice. We'll see.