Wait are people really suprised by the Alice "turn" thing ?
I havent played past ep 10.. or was it 11 ? The one that ends after the Apparition makes you "construct" a dream shard by collecting 4 "true love" essences.
Anyway in that episode you right away deduce that something is up with Alice, since if you try to get a "true love" shard from Abby you realized she holds no "true love" for you, and while at her house you find a letter from Alice basically either pleading, or forcing Abby to try to seduce her brother and keep him away... At that moment you should have realized that after the Tracy swerve where she ended up being a decent human being, they were gonna make the ugly little sister that was so "fond of big brother" the bad one, mind control or not, Alice is worst girl in looks, and if she does get bitchy but sexy Tracy killed in some routes than **** her even more...
EDIT - while here I have to ask, did the CG replay gallery get fixed in this final version ? in my most recent one I have all of Alice's gallery is messed up, and scenes from some of the other characters dont unlock even if you viewed them in the story (2 of Ms Turner, and 1 for Marcus's mom).