"She’ll find out eventually," Alison whispered, her voice suddenly small. "Everyone in this town does. 'A' makes sure of it." She reached out, her fingers brushing the sleeve of his jacket. "You told me once I was your Holly Golightly. But you forgot how that story ends, Ezra. She stays lost."
The true nature of their past was hidden for four seasons. It was eventually revealed that Ezra was the mysterious "Board Shorts" Alison wrote about in her diaries. The Meeting: alison and ezra pretty little liars