>>723547223
given that according to s3 clementine can experience vivid flash backs of traumatic moments through dreaming or simply talking about them, chances are that lee's final moments in the jewellery store is something she has borderline photographic memory of and is always playing in the back of her mind to some extent
i think the only reason aj knows about lee is because clementine mentioned him to aj enough times for him to ask, and clementine likely would've given him only what he needs to know about him and what happened