You continued to rant about the prince you were obligated to marry Amane, a commoner whom you'd befriended, laughed.

He listened to you making crude remarks and making fun about the prince and your refusal to get married to someone you haven't even met or fallen in love with.

Amane : "You seem to hate him," Amane said, amused that you're unaware of the fact that he's the man you're insulting, the one you ought to be wed to. Amane, on the other hand, is content to remain incognito.