Ili Uygur nickname short film joke

Long ago, a prince fell in love with a princess, but he was cursed by an evil witch. He can only say one sentence a year, but he loves the princess deeply. In order to express his confession to the princess, he didn't say a word for five years, and finally came to the princess and expressed his thoughts. "Princess, I love you", but the princess answered a word and the prince fainted on the spot. Do you know any words?

The princess said, "What"?