Answer:
Haven't I?
Explanation:
The statement has Have as auxillary verb and the statement is positive. So, while making the tag question negative form is used.
The wife is old, ugly and lowborn. Even the knight tells it to her on their wedding night. It is also decadent for the knight who might have been wed to a beautiful woman. Therefore, the woman is really careful and shrewd. Using her wiles she tries to make the knight marry her.
I think it is reject because the root word for rejection is reject.
