ok just for the hell of it...
1.) would always have money or time when something fun was coming up. Would always be ill or poor if there were duties to be done or bills to pay.
2.) these convenience illnesses ("allergies") involved her voice breaking so she would speak as though she would die any moment.
3.) would stomp like an elephant on the stair irrespective of the hour (3am, 4am?) and frequently sing and whislte if agitated
4.) would hate all women that attracted male attention - in paritcular those that where fitter, whiter, blonder, taller and skinnier than her (she was very attractive, but in a non-barbie way). she would tell stories of how other women envied her and how they fought in vain for a little bit of attention from all those men that only had eyes for the HPD (projection?).
5.) would publically ridicule and humiliate those closest to her - "by accident". this could also involve ignoring as described in the other post.
6.) would never do any work - but was very good at making everyone believe she was hyptertalented at everything she did and indispensable (wherever she had worked they would love to have her back, at twice the salary if necessary

).
7.) would make a big deal out of every #######4 little thing she ever did that was not immediately for own benefit.
8.) would always distract from the real matter by going off on emotional and dramatic tangents (personal history/misery).
9.) would pick fights to spice up her life/lift her mood
10.) would spend days in front of TV/bad fantasy or scifi novels
11.) when malicious, would exhibit her real emotions in gesture, tone of voice, facial expression, but keep up the innocent fassade in the contents of her works (cognitive dissonance).
12.) would try to seduce every man that passed our doorstep but denied it.
oh, i could go on...