Where should she have been? She was told her child is dead. If I remember correctly, rotetshuu (her owner and the father of her lover) said he killed the child. She just discovered recently that it might still be alive. Who knows what she would have chosen if the child was by her side. As a mother I get her in that situation. I probably would also have fled a place, where one cannot even say goodbye to ones own child.
Ah, ok, I really did misunderstand you :) yeah, it would have been nice if the emperor were understanding and caring and mature enough to help her get the child back and live together as a happy family. And give Rashda etiquette lessons and such.
And yes, thanks to that Navier can be with someone who truly cherishes her and whom she loves. But the way is so thorny

At the moment I even pity Rashda. The situation with the baby is really shitty. And she isn't in the position to talk about such things with her lover too.