|“|| Alison: I'm sorry, Aria.|
Aria: For what?
Alison and Aria are the closest ones. Aria does follow Alison's suggestions most of the time. Alison mostly lets Aria do her own thing and does not often get involved in her personal life, except when she threatened her father about the affair (season 1), and would sometimes use it to get Aria to do what she wants. They are both naturally independent and obsessed with their own sophistication. But later known that Aria is the one who Ali trusted with her box that Jason had given to Aria because Aria is the best at keeping secrets. Aria will occasionally stand up to Alison but not as much as Spencer stands up to Alison. It was revealed in "Free Fall" that both Alison and Aria have dated Ezra Fitz.
mother preparing dinner in the kitchen. She suddenly recalls the incident she witnessed, involving her father and Meredith Sorenson kissing in his car. This time, she additionally remembers how Alison had tried to convince her to tell her mother what she saw. When Byron had tried to call Aria, Alison had warned her not to pick up, correctly suspecting that he would try to talk Aria out of revealing what she saw. Alison had warned Aria that she could risk losing both parents if she didn't tell.
Hanna makes a comment to Aria about how she used to crush hard on Noel Kahn, she flashes back again to that day and remembers how she and Alison had spotted Noel with a girl named Prudence. Alison had torn into her too, suggesting that she was anything but chaste with Noel and provocatively suggests that she had gotten a boob job. Aria watches Noel applying sun block on the other girl enviously. As if reading her mind, Alison asks if Aria would also do something like that to get Noel's attention. She then teases Aria for falling for brainy guys, and calls Noel immature and simultaneously perfect for Aria, flustering her.
There is a flashback of The Liars at a party. Alison had manipulated a girl to dump Noel, who gave them a nasty look in return. Alison had claimed that they were all responsible, when it is obvious that the girls had been oblivious to how Alison had even managed to break them up in the first place. She claims that she did it for Aria, so she could have him instead, and that she only kills when they need food.
Aria and Alison go out for frozen yogurt in October of 2008. While they are walking, Mona sees them and calls out to join them. Aria looks inclined to stop, but Alison propels Aria forward in attempt to lose Mona. They run until they turn a corner past some bushes, then stop in their tracks when they see Byron and Meredith making out in his car. Byron is all smiles until he spots his daughter and her crestfallen face.
On Halloween, as girls get dressed in Spencer's bedroom, Aria walks in and announces that she doesn’t feel like going. The girls accept Aria's decision, sans explanation, but Alison doesn't. When Alison and Aria are left alone, Alison tells Aria that she didn't tell the other girls the secret about Byron's affair. Aria thanks her, but Alison then criticizes her for being such a downer and not going to the party after she supposedly worked so hard to score her an invitation. Aria gives a meek defense.
Aria finds an earring in her locker, a "gift" from "A," and she has a flashback of a night when she and Alison snuck into Byron's office to find out if he was still cheating with Meredith. Alison finds one earring in the couch cushions and Aria freaks out. Upset and angry, she lets Alison talk her into trashing the office and letting him believe Meredith did it. Before Alison "finds" the earring, you can see it sparkling in her hand, meaning she had actually planted the earring there. Meredith also states the earring is not hers, further proving Alison planted it.
Aria is sick with the flu and groggily wakes up and sees a blonde going through her closet and pulling out Alison's old doll that has the diary entries of Byron in them. She asks them what they are doing and the girl turns around, revealing to be Alison herself. She says "Taking back what's mine" and sits on Aria's bed. Aria asks her if what she wrote in her diary is true. Alison tells her she will tell her, but she might not believe her. Alison tells her it is true, and that she was desperate for the money. Aria is shocked, and asks how could she do that. Alison says she never called her mom, and she just wanted the money. Aria also asks if Byron murdered her, and Alison smiles replying "Do i look dead to you?" Alison decides to leave the doll and notes, and right before she leaves she says "You know why i picked you right?" Aria shakes her head, and Ali mysteriously winks and leaves. Aria runs and opens the door...but no one is there.
Ezra confesses to Aria that he was dating Alison during his college years and he started writing a book on her after she "died". He wanted to be a great writer and to write a really good true mystery novel about Alison. He knew the girls before they knew him and he had originally dated Aria for research. He stopped writing the book when they got serious. After they broke up, he started his research back up again and that's how he knew Alison was still alive.
Alison reunites with the four girls. She tells the girls about meeting Ezra at a pub while hanging out with CeCe Drake. Alison tricks him into thinking she's a literature buff. Alison apologizes to Aria for "everything." Alison tells Aria that Ezra is trying to save her, thinking that it could get her back.
Alison and Aria both go the hospital together, while the other Liars (Spencer,Hanna,Emily) go together. Alison and Aria take the subway. Exiting the Subway, Aria says she doesn’t understand how Ezra found them, and Alison tells her that she thinks Ezra was following ‘A’. Alison reminds Aria as to why Ezra is still looking for her, “because he wants to win you back. Does he have a chance?” Aria tells Alison she can’t think about that right now, she doesn’t even know if he’s alive. The two arrive shortly after the others. Both Alison and Aria go to the nursing station and ask about Ezra. Shortly after this Alison is told to report to the emergency room, to which Aria responds by telling Alison to leave the hospital. Later, Aria goes to see Ezra in the recovery room. He wakes up and whispers something to her and she rushes of the room. At Fitzgerald's Theater, Shana (dressed as "A") holds Alison and the girls at gunpoint, seeking justice for what Alison did to Jenna Marshall. Aria sneaks up behind her and ends up knocking Shana down into the orchestra pit, killing her.
Alison tells fabricated story of being kidnapped to Gabriel Holbrook. She later tells Emily and Spencer that she lied to protect Aria, claiming that she would get into serious trouble for killing Shana.
Alison has stopped by Ezra's apartment and while she's thankful he was on the roof in New York and he didn't die, she knows he held things back in his book. "There's more, isn't there?" She asks him, and Ezra all but confirms it, "if there was anything left, the only thing preventing me burning it is the possibility that it would help Aria; if she would let me help." After asking if Aria knew about her visit, Ezra tells Alison to tell her, “absolute honesty?” He nods and says that it’s all he has left.
The five girls are in Aria’s living room. Aria tells Spencer that she should just tell Toby the truth. Noticing Spencer looking in Alison's direction, Aria tells her that it's her decision, not Alison's. Alison tells the girls they have put up with so much to help her, and she's made a lot of enemies, and just like she's working to earn back their trust she wants to try and make amends with everyone she hurt. When Aria asks if it includes Jenna, she does not answer.
Alison keeps up her lie with Detective Tanner about the Liars being in Philly the night of Shana's murder to protect Aria. Aria asks if Tanner knows they were in Philly that night, and Alison says that she can’t tell, but Tanner clearly doesn’t believe her story, “she’s trying to trip me up”.
Alison is curious as to why Aria isn't talking to them. Alison wonders about Aria, “she’s totally icing us out”, before asking if there is something going on between her and Hanna. But no one what happened between Aria and Hanna.
Sitting in The Brew drinking a coffee, Alison is approached by Ezra who tells her that she is not in this alone, and that a lot of people have supported her, done whatever she’s asked, and gone along with all her stories… Alison wonders, “is this a threat?”, and Ezra tells her no, right now it’s an observation. Alison questions if Aria asked him to talk with her, “because if one more person tells her what I should do, I swear I’m going to scream”.
When Alison claims that Cyrus is her 'kidnapper', the liars are convinced that Alison is 'A' and is trying to frame the liars.
After going through Bethany's files, Mona calls Aria from her house, and tells her that she found out that Alison actually knew Bethany and about her moms affair with her dad and that she lured Bethany to Rosewood the night of her murder because she wanted her dead out of jealousy. Mona tells Aria that Alison is "A". Aria rushes to Mona's house with Ezra, only to find out that Mona is dead.Mike involvement. When the guard announces that visiting hours are over, Emily and Spencer leave but Alison calls Aria back. Alison tells her that she has to tell her lawyers about Mike as his testimony is the only thing that can save her. Aria pleads her to hold off telling her lawyers about Mike so that they can find ‘A’. Alison agrees to wait.
Alison [to Aria]: You know why I picked you right?
Alison [to Aria in Misery Loves Company]: No sweetie, I'm more real than I've ever been.
Alison [to Aria]: If I tell you the truth, you don't have to believe it.
Aria [to Alison]: Do you see A?
Alison: Everywhere I turn. So do you. You all do.
Alison [to Aria]: Do I look dead to you?
Aria: You're A!
Alison: Stop saying that!