But, I do agree with PPs. (1) offer for her to refund the scarf with or without refunded shipping (your call whether you feel that the item may have been slightly misrepresented) and (2) I, personally, would respond to the feedback. Keep it professional and free from emotion. I have a negative feedback in which the customer told me that she basically could have made the item herself (or her husband, I forget). I politely, professionally, but firmly responded. To me, if I see negative feedback that the seller has responded to to finish the story, I appreciate that. It doesn't look like you are hiding and avoiding responsibility. JMO, Erica