I'm conflicted because... Shunin really made an ass out of himself. I know "feelings can't suddenly be changed" but come on. Shunin was still cold and couldn't even be honest. I guess you could argue that she knows deep in his heart he's happy but... I'd be dissatisfied if I were her.
I always had a feeling Il never expected to be king, since they said from the beginning everyone thought it would be Yuhon. Glad we got that flashback, and more of Il's perspective. He never created war, or did much as king because he was a placeholder, and mainly used his power to shelter yona...