Her eyes all but turn gold.
"If you ever wish to marry my **** daughter, you will take her from this castle now. Go." There is a certain amount of pressure being placed on his mind currently. It is clearly from Nicola.
"My daughter needs your help getting out of here, than she does your petty and self serving attempts at vengeance. You are a student. **** leave." Anyone who knows Nicola knows full well this is serious.