@Mojo Isn't that the point though? only a very selfish character would fit with what he did,
i mean, him taking her business, even the bullying of his "true love" (doesn't sound all that serious when the heroine talks about it...), and so on, my guess is that eventually we'll find all that was by his hand,
by that i mean, a "flower head" queen would make his life as a king easier, in the sense that she would be a convenient pawn,
add to that, that he just weakened a duke's family by canceling his arranged marriage with the bullying excuse,
2 birds one stone.
But that's just a theory, a manga theory, Thanks for reading!