I like this manga, however I kinda wish it was a yuri or shoujo-ai.
Imagine, a world full of BL and straight relationships, our princess feels like she can’t tell anyone the fact that she is in love with another girl, so she hides this fact by saying that she has a secret male lover.
This maybe because I am reading to many yuri and shoujo-ai manga at the moment, but I think that would make a interesting story.