
Since she's become an important aide for the crown prince, it's not impossible for her to hear about the information that he's looking for her with the objective of marrying her. I'm pretty sure once she finds out she's not in danger, everything would clear up. And it wouldn't be that hard to make her agree since she would know that he's doing it for the betterment of his people and she respects him in that aspect.
Everything can be over easily but of course we need some unnecessary hindrances to fill up the story, welp.

actually since the crown prince likes marie i think he would probably try to avoid any other women (although yes he would prefer the princess of the cloyan kingdom over the 2 delphinas) and marie would probably find out (if she finds out) through gossip or another subordinate who accidentally told her abt that or sum lol. but would she really marry him just for that (respect)? like i think she’d have to have a bigger benefit or like the crown prince
This is one of my first bl manga that i've read and I still go back to reread from time to time because it's a gem! Togawa-san's character have me in a chokehold, I'd love to fall in love with someone as easygoing but loves deeply as him