I really hope Charla didn't buy Amy's bull**** line about her being "one of the girls". I think she knows they all hate her anyway. At least I hope she does.
You know what... I liked Amy better when she was Zack's emotional punching bag. Hell, I even sort of felt sorry for her. Even though I hated Zack and still do, it seems like he kept her in line. She was nicer when he was still around. But this new claws-out Amy is just... evil.