'The Lying Game': Biggest unsolved mysteries from Season 1

Let's be honest: you know what you're getting into when you start watching a show like "The Lying Game." Of course there are going to be secrets involved, and of course we're not going to have answers to all of them. But the ABC Family drama seems to take the whole "cliffhanger" notion to a new level -- we've gotten a couple of answers during Season 1, but only ones that spawn more questions. Let's go over a few of the as-yet-unsolved mysteries from the show.
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