"Sometimes... I wonder." Henry smiled, though, because he wasn't entirely serious. "It does...um...feel like I'm going to wake up and be home in my own bed and all this...." And this would all be gone, nothing but fading memories. He knew it was real, but sometimes he saw something or realized something and the overwhelming-ness of it all crashed down on him.
Now was one of those times. Because a part of him couldn't help but wonder why Eileen, smart, pretty, amazing Eileen, would want to dance with him. But she did.
"And, um, if by some...insane chance this isn't real, and we wake up back home....um.... maybe we can go dancing sometime." Still smiling, but not entirely joking. He just...wanted to see what she'd say.