
Hmm, I'm sorry but did you miss the part in which she was a WAR PRISONER? Kings kept foreign royals hostage after war all the time as a form of insurance against attacks or even to settle newly occupied territories, it's nothing new. Regardless of his own feelings for the OG MC, if his memories are true and he originally raised Edgar with love and saw him as a son, its totally justifiable that he will feel betrayed and hurt when he turned his sword on him for a daughter of an enemy nation that he barely knows. People just don't abandon their loving families for love. It sounds romantic and crap but in truth its very naive and impractical, especially if Edgar was being trained to succeed the throne (probably even had a fiancee all things considered). Like it would make sense even without the king's already existing trauma with his other siblings. And knowing that in this life, he distances himself from Edgar. It makes sense 100%.

People do that all the time in these stories, what are you talking about? It’s purely fictional, and the author is adding all this for a dramatic plot.
Like I said Edgar has empathy, since he WAS raised with love and affection akin to a father. So he would of course feel bad for a young girl being taken as a war prisoner and being forced to do who knows what by the tower mage since he was interested in her. Most likely what her special power is since her siblings all have one.
I also wrote that the crown is a burden for a single person, so I can understand his stance in needing to be distant and crushed by Edgar’s betrayal. I’m just giving a reason why Edgar is doing what he’s doing, even if it’s impractical and childish.
He can’t understand why Edgar would go so far for someone? Maybe it’s because he has EMPATHY? A girl locked in the tower against her will and can’t escape no matter how badly she wants to. It just goes to show that the burden of the crown is too much to bear for a single person.
Having to constantly be watching his back from all sides and keeping them at arms lengths to where he could give two shits about some random girl.
But wasn’t he obsessed with the og fl? So why the, “omg why do you care about some random woman” when he goes crazy trying to keep the og fl to himself, like use your brain big boy.