(Perfect memory. Her voice is the same. Figure is the same. Plus he remembers the little rooftop thing where tackled his Black Lantern self and tried to reason with him which he kind of figured it was her, and she never denied it either, and they had a whole conversation, with Jason too. Safe too assume he remembers and knows it's Hayley. I gots some smarts lol)

Nathaniel laughed a bit. "Really? You thought I was such a bad guy that i'd end up in hell? Dressed in white?" He asked as he helped her sit up. "And this was supposed to be such a happy reunion too." He shrugged before smirking. "Let's liven things up a bit." He then muttered just before kissing her.