Becoming unwell over how Hornet's character arc parallels her father's.
The Pale Kings philosophy of "no cost too great" always intrigued me because it seems to fundamentally go against his nature as a wyrm. There's no reason for him to devote so much energy to saving his kingdom; He easily could have just left and started a new kingdom, it would be far less of a hassle than dealing with the infection and his new subjects would be none the wiser, but he doesn't. Hornet is in this same situation too, she grants wishes and helps pilgrims even when it isn't her place to do so. They both can't seem to resist helping others despite it being "below (their) station," as the Caretaker says.
(It's pretty deep into act 2 when Hornet admits that she finds solace in helping others rather than doing it exclusively for the tactical advantage, I wouldn't be surprised if that was the same (arc) the Pk went through.)
And so they help others, they try to save the kingdoms from the grap of a higher being, but in the end their plans fail and it gets others hurt. The Hollow Knight couldn't contain the infection, and the void soaked tendrils threatened to pull Pharloom into crumbles.
Most of the bugs of Pharloom embrace the inevitable of the end, they accept what is to come and do nothing to change their fate. In this same state of mind, devoid of hope, the Pale King took his court and palace into the dream world to hide in shame.
And this is what sets Hornet apart: despite her mistakes, despite the entire world believing her mission is folly, she persists. It is her perseverance that sees Pharloom saved. It's just one more way that Hornet forges her own path rather than following her predestined fate.
But it makes me wonder, what would have happened if the Pale King had held on just a little longer?