In this screencap of a page from Alison's journal that a fan tweeted at Marlene, Ali talks about Byron Montgomery's (Chad Lowe) affair with Meredith (Amanda Schull). She notes that "There's no way Aria tells her mom though ... Mr. Montgomery will talk her out of it, I just know it!"
Then, most notably: "She doesn't have the courage to stand up to him, that's why I picked..."
The last word in the sentence is obscured, but it could be "her." Is this Ali saying she picked Aria to be a friend because she's meek and easily cowed? Or perhaps she's suggesting she picked the Montgomeries to blackmail because she was sure Aria wouldn't mess up her plans?
And how does this relate to the scene in "Misery Loves Company?" Was she mocking Aria, saying she knows Aria can't stand up to her dad?