"Rose!" John yelps and barely restrains himself from throwing his arms around her, though he's grinning at first. It's Rose, it's Rose, he's so glad she's all right even if he saw her with the trolls and Dave in her god hoodie and everything, and--

And then she asks that question, and he's taken aback. She'd already called his name for fuck's sake. The possibilities race through his head - trauma-induced amnesia, alien-induced amnesia, SBURB-induced amnesia... okay, that's about all he's got.

"Uh..." his face goes from giddy to concerned in about half a second. "Rose, it's me. John? Um, you just... said my name?"