She was arrogant in the one scene I remember her being in, and seemed kind of rude when she yelled at Andrea for killing the zombie when Haley had been wasting tons of ammunition on it. I can't have too much of an opinion on her though since I only remember that once scene. Feeling over-confident one time and coming across as kind of a douche just once doesn't mean you're an all-around bad person. Maybe she was really cool beyond that... We never really got to know her.