what are some of the social characteristic about cathy

Cathy's interactions with others are mean-spirited, manipulative, and filled with evil intent. She can hide the evil within her to a point.... especially when she wants something. For the most part, she hides nothing. Adam's love for her, however, is the exception. He sees no evidence of what everyone else sees.

As to how Cathy treats herself, I'd have to say that she puts herself in precarious situations because she enjoys them. She doesn't seem to have any ultimate goal, and she doesn't seem to care about herself anymore than she does anyone else. Cathy sees no goodness is the world, and is unable to see that there just might be something good within herself.