"And? You don't need to tell me something I knew," Answered Emelia.
Henry didn't want to believe she knew, but the way she acted and sounded was believable. But who told her? No one aside from him and his father knew about that. There is no way others knew about it.
"Is it alright to marry a false Princess? Suppose the people and nobles knew about this. In that case, our child will be called an eyesore to the society not only it will destroy your reputation but also the heir," Provoked Emelia and did not stop here as she continued on, "I wonder what will happen to you."
Of course, the answer was simple. The nobles will revolt and turn their backs on Henry. There are other more nobles who wish to become the emperor just for power. It's obvious, seeing the growth of Henry's fame and power.