Loophole

First of all in this story it shows the princess cares about her country above all, it's how her character is designed even doing the marriage for this. So if she likes her country so much then how is it possible to like the barbarian leader who caused that situation of her country so quickly? Like it has been not even a month she met him and girl feeling all kinds of attraction for him? Like what? Have some shame. When the fiancee wants her forcefully it's bad but the ml doing is fine. Though it seems ok to us because we read the internal monologue of fl but the situation is kinda same