I agree with L-o-l-a's interpretation, but I also agree with @avclub-cee3162a27e516aea7fde212b5da1460:disqus that the phrasing was awkward/misleading (as in, more awkward than just "Peggy was being awkward").  The "what you are" would have been more appropriate if the three guys were part of a stigmatized class (as in…