After Alison’s "resurrection" and return to Rosewood, her dynamic with Ezra shifted from romantic interest to uneasy allies. They shared the burden of knowing too much. Ezra’s guilt over his book and Alison’s trauma from her time on the run created a strange bond between them.
Whether you view Ezra as a reformed man or a character who never truly paid for his actions, his history with Alison DiLaurentis is the thread that holds the show’s central mystery together.
For years, fans believed Ezra’s only student-teacher transgression was with Aria Montgomery. It wasn't until Season 4 that the show dropped a bombshell: Ezra had met Alison long before he ever met Aria.
The revelation of Ezra’s history with Alison changed the audience's perception of his character overnight. We learned that Ezra didn't just happen to meet the Liars; he tracked them down.
His relationship with Alison was fueled by his obsession with writing a "true crime" novel about her disappearance. This raised a chilling question that the show grappled with until the series finale: Was Ezra a predator, or just a man blinded by his own ambition? While Alison was certainly manipulative, she was still a teenager, making the power dynamic between her and the adult Ezra fundamentally inappropriate and dangerous. The Impact on the "Ezria" Relationship