I posted a ginormous thread about Alison being A from the beginning. I believe Alison is the only one with a good enough motive. Alison is a psychopath trying to keep the world revolving around her. That was Alison's MO for everything she did in Rosewood, with her friends, the bullying, hair, makeup, she wanted to be "unforgettable". She loves to create drama and tragedy to gain sympathy and attention from others. Alison is a great actress she is very convincing. Alison even believes her own lies. 2 examples of this is when she was in the Fitzgerald Theater with Ezra he told her she tells her stories with such conviction it's like she even believes them herself and she says "well if you can't convince yourself why should anyone else believe you?". The second example was when Cyrus has confessed for Alison's kidnapping and cooperated her story (when we all know Alison wasn't kidnapped) and the liars are trying to convince Ali that she cannot ID Cyrus because he's an innocent man and Spencer says to Ali "In sorry do we actually have to remind you that you were never actually kidnapped". Alison always has a motive to lie, she even lied to the liars about her argument with Mona and slapping Mona back. Why? Because she wants the liars to believe she's a changed person but she's not. The biggest proof of Alison being apart of the A-game all along: First, Alison disappearing benefited Alison the most, she was losing all the girls based on how she had been treating them all that time just like Spencer said "what's a leader without any followers". Alison needs the liars more than the liars ever needed her. She faked her death creating sadness and remorse in the girls for the way they felt about her because of the way she treated them! Classic manipulator. Alison stayed close to Rosewood. She was able to visit the girls on multiple occassions while they were asleep, and apart of her story even save them on multiple occassions. I believe CeCe was working for Alison the entire time, because Alison helped CeCe without question when CeCe needed to leave town and how CeCe and Alison's friendship played out never made sense and what they did that summer together no one really knows besides what they told us. Alison gave CeCe her ticket out and CeCe left as Vivian Darkbloom and Alison lied about it and wanted Emily to lie about it too, using Emily's love for her to manipulate her. And every time Alison would visit the liars she never actually gave them any answers, it was just more Alison games and lies and puzzles. Alison loves this game. She was able to sneak in and out and around everywhere, just like A. Alison hired minions to help cooperate her story. She hired Noel Khan to break into Hannas house to make it seem like she was really actually kidnapped and the kidnapped was still after her, and she even lied to the girls about it until she gets caught. See, Alison always lies first and tells the truth once she gets caught with a sad dramatic story where you end up feeling sorry for her behind it. Classic manipulative pathological liar. But the BIGGEST PROOF is in Season 5 Episode 10 (I recommend everyone go back and watch this episode-there's so much information!!) The episodes title is "A Dark Ali"! This entire episode is based around Alison trying to cover her own ass and convince everyone around her that her lies are the truth and Ali will do anything at all costs to a heir even this and get her way. The episode starts off where the previous episode ended with a guy confessing to be Alison's kidnapper and the burglar who broke into Hannas house the night prior. They show us who they explain the be Cyrus. Cyrus goes on verbatim to tell the tale Alison told at the medical examiners office that she recorded for the other liars to mesmerize. So the entire episode the liars are trying to convince Alison to tell the truth and let this guy go because they think it's a trap that A has set to bring down all the liars and expose the truth about what actually happened in New York. Emily is the one the liars send to do the dirty work and to convince Ali that she has to do the right thing and say that this is not the guy. Alison feels cornered because Emily asks her "is the reason you don't want to tell is because for the first time everyone actually believes your story" so now Alison has to come up with a lie to play off of Emily's love and compassion. Alison tells Emily that Cyrus is the one that gave her that scar on her leg (the scar Hanna asked about and never got a straight answer about) because he attacked her stabbed her and robbed her after pretending to like her. Alison was very convincing, Emily believed her but told Alison that A must know about this and wants to trap Ali and expose her lie about the kidnapping. So Alison agrees to Emily that she will allow the 48 hours to expire and will not ID Cyrus as her kidnapper as it will put all the liars in the line of fire. Well, ALISON LIED! She identified to basement as the place she was kept captive to the officer right in the nick of time for Cyrus to still be released!! The biggest evidence that Alison is the one pulling all the strings and lying about everything comes at the very end of the episode, where they put clips of As activity.
We see Cyrus standing in the creepy woods, waiting for somebody, presumably A but then we see Alison, dressed up as her ulterior ego Vivian Darkbloom, dressed in all black with an A hoodie on. Her and Cyrus proceed to have a very telling conversation. Cyrus: "I was beginning to think you might now show. There's a warrant out for my arrest, I barely made it out in time, that wasn't the deal we made" Alison:"You're lucky there was even a deal at all. I should've left you for dead when I found you, no one would miss you, Cy, not for a second" As Alison hands him a plane ticket (and when Alison hands someone a plane ticket there is usually a new identity attached so he could get away from the cops---that's weird if he really attacked her) Cyrus: "You know I could've told them the truth about you, how we met, all the fun we had together." Alison: "So could I. But then we would both lose. Now we both win." Cyrus grabs the plane ticket and turns to leave and Alison continues "I found you once, and you can bet your life I can find you again. This is your one chance to start over, Cy, you better use it!" Cyrus: "The way you've used it, Ali?" This conversation reveals soooo much!! By the town of Alison's voice during this conversation she doesn't fear Cyrus at all! In fact they seem to be very aquanted, her calling him "Cy". He isn't the one who gave her that scar by attacking her. She lied to Emily about that. But that's not the part I'm analyzing because Ali lies always to get her way. The part that's interesting is that he seemed more afraid of her than her of him. Why would he agree to do this for her? He obviously cared for her or they had some connection. Or she was just blackmailing him as she does everyone else. Which is how A gets help. A and Ali have too much in common. Alison hired Noel Khan and Cyrus both just to make her lies seem like the truth, no matter what the other girls wanted or how it would effect them. That's the difference between Alison and the liars. The liars care for eachother, stick together, and they tell eachother the truth eventually, they love eachother and are actually in this together. Alison is in this for herself, for attention, to control the liars like puppets or dolls. Even Paige made that reference in this most recent season 7. Alison pulls the strings and she will go to extreme lengths to cover her tracks and lies.
Please, let me know what you think! Since the end of season 7 I have been obsessed with figuring it out watching episode after episode over and over. i know that with Archer kidnapping her this season it makes it hard to believe Alison would've been able to do that. But what if archer was under her spell as well? Doing everything she asked? That gained her the most sympathy from the girls since then finding out her mother buried her alive. She planned all of this too. She had to. The girls had been gone for 5 years, Alison cannot live the boring life she had been living the past 5 years, she wanted her dolls back. We all know how dark, manipulative and evil Alison can be. I do not believe she ever changed, it was all apart of the rouge to keep the liars close.
Let me know if you agree or disagree or if you can add to this theory! Please I'm obsessed in figuring this out. I believe the writers have made some mistakes along the way and have written things in from the liars perspective so they can disprove them as a lie or incorrect memory or to point us in different directions because it's a mystery show. I would hate to believe they make it up as they go along as one person said. Because I've been watching this since episode one and I just hope they put in as much effort as we have in our theories so we can have a satisfying ending to a crazy wonderful series!