Why do I think that prince was pretending to be a jerk. As we can see that emperor is a lunatic so he is always looking for others' weakness. That is why prince didn't want Rael to face any danger because of his lunatic father. I think he just doesn't want emperor to know that he loves Rael as emperor can make use of her to control the prince just like ishid doesn't want emperor to know about yunifer.
Why do I think that prince was pretending to be a jerk. As we can see that emperor is a lunatic so he is always looking for others' weakness. That is why prince didn't want Rael to face any danger because of his lunatic father. I think he just doesn't want emperor to know that he loves Rael as emperor can make use of her to control the prince just like ishid doesn't want emperor to know about yunifer.