Talk:Ali's Pretty Little Lies/@comment-83.8.139.225-20121226124112

Well, I've just download the prologue of Ali's PLL, it's published as a Christmas gift from ABC Family (Spoilers!).

Alison framed Courtney, who was her victim, made Courtney to impersonate her when they were kids (it was all Ali's master plan). Courtney wasn't insane, she was just bullied by her cruel sister.. Alison perceived Courtney as a rival (she was jealous that kids and adults liked Courtney more) and made her go to a mental institute. And years later, depressed Courtney was still treated by Ali like someone worse. Courtney just wanted to be happy and punish Ali, so she made that famous switch.