Why's everyone so mad?

Having to go to a monastery and fight on the BORDER of your country is shitty. Like awful, people are dying left and right constantly and your life is always on the line. Furthermore he technically doesn't have plot rebuff on his side anymore so he could very likely end up injured or something. I feel like that's a suitable punishment. Mind you his character like his personality as written by the author is somewhat obsessive. Even if all the restrictions where dropped he was still sincerely in love (or sincerely obsessed) with Reeze. I also think he sincerely believed that MC was colluding with her father because he trusted everything Reeze was saying. I'm not saying he's blameless I'm just saying I think he's being sufficiently punished. And plus if they take the dukedom from Cliff their will be no heir, Killeen already firmly rejected that offer when his father brought it up the first time so..