In all honesty, I don't think I have too much o' qualm about her personality. There's some dark, intense background to her that makes her the way that she is, which I'm sure will be explained next season. -_-
I think what really rubs me the wrong way is that she fell for Sayid, and more importantly, he fell for her. And I have a shrine to this man. So it's pure jealousy. ^_^