He frowns and stares at her, almost incredulous, as he tries to figure out exactly what is going on. "What are you playing at?" he barks it almost like an order, a demand at answers because this reality didn't match up with his expectations. He's cautious, never entirely sure what to expect-- from her or what new things these universes tended to throw in their directions. Everything in this moment was utterly unpredictable.

Then again, maybe she wasn't playing at anything at all. Something from the fountain made her forget, maybe? But he was fine...maybe because she's human and he isn't? He isn't sure yet, and everything etched into his features was obvious confusion.