Screw the politically correct crap. I'm a rabid feminist and I don't give two hoots about being called missy, Mrs. vs. Ms vs. young lady and all the other superficial stuff that seems to offend my counterparts. In the end I am in charge of my life and profession and small stuff like that just isn't worth getting upset over. English is not my first language so I know about the nuances that can be lost and I can come off as stupid or clueless. But who cares. I'm sorry you got $hit from some people.