"I..." She didn't look different, but perhaps he'd remembered her differently. Or maybe it was just because no amount of memory could properly place that smile. Lucifer stepped forward and pulled Mary into his arms, hugging her tightly. His breathing (such that it was) was shaky and his heart (facsimile) was swelling. He stood like that for a full minute before breaking the hug.
Then he went into the room like nothing had happened. "So, we're making pizza? Perhaps I should have called first. I have a great number of ingredients back home that would have been quite helpful. Hello, Toby." Toby had crawled over to him and made grabby hands so he could be picked up. "Up we go. Isn't there another one now?" Careful observers might have noticed that Lucifer was being chatty. By his standards, anyway.