This must have been some joke Tony didn't get. If it was, it was a really bad one, and both her and Nick should have been embarrassed for it. As much as she didn't recognize him, Tony knew those green eyes, knew that look, knew that she was supposed to have explanations for him and not an empty stare and knew that he was going to be the one ordering the next round of drinks if this wasn't cleared up fast.
"El--" he started, hand dropping and swinging away, apologetic for the clearly unwelcome intrusion, but eyebrows knit to beg understanding. When he cut himself off, it wasn't that he had second guessed himself-- his gaze darted around her face, every inch of it exactly how he had last seen it (except not dead), not some excellent doppelganger, Elektra-- but he snapped his mouth shut thinking maybe this was some elaborate plot and he was on the verge of ruining it. He made the quickest scan of the casino again, not wanting to take his eyes off of her for long, wondering who exactly had made his hotel the setting of such a dizzying scheme, and why he had to be involved.
He couldn't help it. He started again, "What are you--" but she was so resolutely distant. Like she had no idea who he was.