Sorry to hear it.
But I disagree, one of the things that the MC demanded was basically that the Princess become his concubine. The future Queen, with a man, unmarried...
The Royal Family is the one that demeaned themselves to have the MC's children in their bloodline. And he also negociated rights over his children, notably the acces to them. Children that include the future Queen... They not going to bear his name, but will be recognized as his.
Basically, he got everything he wanted. Including a great advantage politically. It also bring safety to his family. All he has to do is take a bunch of hotties as his women...I am sorry, but the choice is easilly made. He fucks the hotties.
Now, if it's not your thing and put you off, I am sorry to hear it, you sadly cannot please everyone.