In short, she no pretty.


Big muscles, strange internals, freak hair, she would do better in a bar full of hammered inmates that did decade sentences with no sent of a girl than in actual society. In universe she is hated for some seriously horrible actions, the ones she is paying for now, and by all races is seen as unsightly due to her natural form being bulky and muscular. Obviously not typical of normal girls, she cannot be normal, she is an alien after all. Even if it saddens her that she won't get anyone not petrified by her or isnt in it to use her as a weapon, she still tries anyway, Karen still gets on the skimpy cloths and tries to pose like the pretty girls.

You can almost see the deficit of confidence in her eyes.