I feel bad for the Emperor, he just wants to be a good dad. But just because all people like her in the past were unhappy, doesn't mean that he can't stop her from being unhappy.
It seems that people in the past were all too eager to exploit this power, regardless of how the holders felt about it. He should try to find a way to teach her how to use it to help people without sacrificing herself in the process.
Also I love how everyone in the family just wants to love her and being competitive on who can grow closer with her! It's so cute and refreshing, and I need more.