Though Nick is “pretend[ing]” to be happy with Amy—and she is pretending right back—she hears him writing late at night on the computer. She tries to hack onto his laptop, but can’t decipher his password. She isn’t sure what he’s writing—but can definitively say it “isn’t […] a love story.”
Amy knows Nick is trying to take control of the story back, but is unable to stop him yet. She knows she must step up and do something to gain control back once and for all.