
Bruh, I mean embrace as in forgiving them without giving them any consecuence. That the why Hess said, Diana is the main chara, the world would always bending for her.
She is now Kael in the beginning.
Kael said he doesnt need apology. Okay. So she would make Diana lose her title. But even that Kael doesnt need it too. He prefer Hess to let Diana keep her title instead. So, what the use of the revenge that Hess doing all this time?

I know Kael doesnt mean that. Hes afraid Hess too deep in this revenge for his sake, not understanding that Hess still have this insecurity since Kael is a character that being made in the novel to love Diana. If u want to talk in the family term, u have insecurity because he will always have family bond with the toxic family.

He's not supporting nor embracing his "toxic family" at all, though? He doesn't give a shit about them as people – they are, however, the next king and queen, and Kael is a high-ranking noble. He can't live his life completely ignoring them and acting as if they don't exist. He just wants to keep them out of his (and Hestia's) private life, because he doesn't care about them.
The fact he doesn't want to take revenge on them doesn't mean he's supporting them. It means he wants nothing to do with them above what is strictly (business related) necessary.

I mean do u see it from Hess point of view??? U can be the husband and said, "Oh, I dont need them to say apology to me, dont bother to make my family go to jail and lose their wealth."
The wife, with her insecurity would think, "Oh, he still care more about them because they are his family."
In this case, only Hess know Kael is "a mere character" that being made to always love Diana. This insecurity is hard to shake. Since, u know, she is a transmigator??? Its make a sense if she s afraid that maybe the world would always protect Diana, including Kael since Kael is a part of the world???

I know she has her insecurities, and they are completely understandable. But you can't blame Kael for her insecurities and the way they make her interpret things; all he has seen is that Hestia is getting an unhealthy obsession with causing Diana and Helios's downfall, all the while he has been trying to make his life be about himself and Hestia. This is the thing with miscommunication; neither part is to blame. Hestia just really needs to start living her life for herself rather than others– be it Kael or Diana/Helios. She has done more than enough, but she's been swept up by it and can't get off. Regardless of how warranted her breakdown is, Kael needed to say this so that the two of them can talk this over and come to an understanding of where they currently stand and where they both want to stand in the future-- if they want to live for themselves of for the psycho currently wedded to the idiot prince. It's unfortunate but it's a rough patch they need to traverse.

I don't think Hestia is being blamed for the meltdown, it's just mostly people pointing out that this has become so unhealthy it's clouding her judgment. Which is not necessarily something she is to "blame" for, but definitely a mental state she should try to actively work herself out of (since, as with most things, this isn't something she can let go of without initiative, unfortunately)
Bruh imagine u are a new person in this new country, no one to talk and no one to really trust, just to support this one person from toxic family that abuse him. U tried ur harder to support him and make sure everyone who hurt him know what he feel, u litterally think that the reason ur existence in that country is for him.
But no. After all the effort he suddenly said he want to embracing those toxic family again. U just finally understand there is nothing worth from your sacrifice, ur reasoning in this new country is for nothing, he would always support his toxic family.
Put this idea on Hess, plus the reason her transmigation doesnt give her any pausible way to move away. Where? Her "family" is not even her family. All her support system is something that she build for Kael.