Actually, she wanted to make the witch very unhappy, as she had a tremendous degree of irritation and animosity for her, and for other people who were like her that would abduct children from different kingdoms and bring to their shrines so that they could feed on their skins and internal organs.
She then said further with a smile in her face that couldn't really be described "I will suggest that you surrender yourself to me to prevent further humiliation of you. Then you can submit your useless and miserable life to me."
"But if you don't, I will take the humiliation of you to another level. And believe me, you seriously won't want to know what I will do to you after this speech if you dare refuse to accept my candid advice."