Guys, did you notice when the woman from Ravenswood was talking to the girls, and Hanna said that Ali can trust them, then the woman said "I wouldn't be so sure", then the camera cut to AriA and she kinda felt uncomfortable and changed the topic saying "Why didn't she just go to police?"
And the hashtag in the new promo. Ezra might be working for Aria nonetheless.
By the way I see no reason of putting spoilers since we all watched it.