
You feel bad for Alicia, who has actively been trying to kill Asha since before the beginning of the story? And she was only that crazy due to being told all her life that she was the only acceptable person to marry Kiel and that it was a done deal. Of course Kiel is a bit unhinged, he fell in love at first sight as a child and everyone around him has been doing everything they can to keep him from the person he loves. Asha is very innocent and naive so he doesn't know the plots that are happening behind the scenes. When Kiel 'kidnapped' Asha when they were kids all he did was feed him sweets. If he wanted to he could have already had say gex with Asha, since he is so innocent and naive it would have been easy to convince him, but Kiel didn't take advantage of that. He's had the man nearly naked in his bed and done nothing. He has been waiting for their wedding night, I think they are both virgins. I also think Kiel is the only one with any knowledge of what is about to happen, since Asha thought his jealousy was indigestion. I also think Kiel will be super careful and gentle with Asha, but he has to get the consummation done to prevent one avenue of annulment, so he won't be able to put it off.

I put kidnapped in quotes for a reason. Asha went with him and wasn't actually kidnapped. They were both children when that happened and he wouldn't have done it at all if the adults didn't literally bobby trap Asha quarters to keep the kids apart. Clearly the adults were reading into it and we're trying to keep them apart because "ewww gay" And if Asha said no to any of this Kiel would stop. But Asha has always gone along with him, even when he thought Kiel was punishing him when he sent him away (actually to protect him). Asha came to the conclusion that he needed to change the law and that he should marry Kiel independently. Kiel hasn't ever done anything to hurt Asha, other then the sending him away part. He has done things to other people, but not to Asha. And if he was really bad he could just take our Asha family members and do what he wants with Asha. But he isn't a bad emperor and is trying to keep everything he can legal and harmless. The Paddington's did this to themselves, they brainwashed Alicia and drive her insane, Kiel just redirected her madness away from himself. And married off the man who is one of the people who did that to her, and if you paid any attention he was actually attracted to her. Seems like he is objecting to the marriage on principal.
One is force to marry never setting foot in his homeland/banished and the other forever living in a fake life. Kiel is soooo unhinged.