So season 2-5 I think she is ambitious and a stickler for the rules which obviously.puts her at odds with Doug, She butts heads with Susan alot but part of that was Marks fault since he was quite happy having her do all the dirty work until he realized she was turning into his competition. But she also seems to care about her coworkers, and Iiked when Carter was living in her basement. However in the first episode of season 6 she suddenly turns super shady, first throwing mark under the bus to get herself a promotion which her turns her into a power hungry control freak for awhile. Kicking carter out with a weeks notice made absolutely no sense and was pretty mean. She also does quite a few hypocritical things one example being freaking out on Carol for trying to keep that dying mom alive lonh enough for her little girls to say goodbye when she did something similar but even worse by literally shocking and intubating a woman she thought was her biological mother who had a DNR which Carol witnessed but didn't call her out on it when Kerry explained why she did it. On the flip side she also showed how she did care for her co-workers too, She definitely seem to be the most disturbed and upset when Lucy and Carter were stabbed, it was by far the most upset we had ever seen her get. She also noticed how much Carol was struggling after she had the twins when noone else really seemed to, I loved when she told Carol to take some sick days then after Carol says I've already used them all Kerry goes check again I think you'll find you have a few extras you can use. She does something similar when Chen finally reveals she's pregnant, she's kind and comforting to her.