DY: “You shouldn’t be dressing in a non-tznius manner in public regardless of whether there are or aren’t rabbis or rebbetzins there.”
DY, while I agree with you in theory, I’m not sure it was the appropriate response in this case. She’s in the process of becoming Frum, and working very hard to grow in tznius. Cut her some slack. People have to grow at their own pace, and going too far too fast can be self-defeating.