I think she asked us to call her by her first name at the beginning of the semester and it stuck (but I can't remember and I might be being rude). Honestly I'm

I think she asked us to call her by her first name at the beginning of the semester and it stuck (but I can't remember and I might be being rude). Honestly I'm as surprised as you are - mulling it over I'm sure I called her Prof. Dwork when talking to her, since that's how I addressed most professors I didn't well personally.