i just had a thought but its quite strange and confusing haha! what if the A torturing Ali was the A team we have now (Mona and Toby and whoever else) but Courtney was the Head A, and then someone mistook Courtney for Ali and killer her by mistake and Ali got scared so pretended to be Courtney to keep safe and found out about the whole A team thing as is playing along with it but really wants to help the girls, hence the visits they all get when they are hurt/sick?