Idk why but it's a common trope where the mc will do everything to change the future but for some reason they forget that it includes people's feelings.
So everything else can change but who people love and marry will stay the same forever i guess.
Also she wants the prince to marry ramona cause if she marries perez she will have to give up the lombardi name if he becomes king. But if he doesn't become king then astana will and that would endanger lombardi
I also think it's because of the laws that the King and Family Head cannot be together, as being a Queen has very different responsibilities than the Head of the family. But I'm sure they will figure it out.
Florentia is starting to annoy me. He has told you that he likes you. So why do you keep talking about Ramona.