@Aki
I think when she healed him during war and held him down to suppress him. She sat on top of him...possibly released something and killed it. Another reason he suddenly lost all his strength and passed out.
His mother said he used to be happy child. One time came back from war, a changed man. Maybe by that time, he has ED. Another reason he kept on refusing marriage until the emperor forced him.
Now he has feeling for her, she can also cure him. Interesting to know how 🤣