She's not expecting him to smile, let alone hug her. She tenses up immediately, her arms stuck at her sides, until he lets her go and she gives him a look like he's absolutely insane.

"What the fuck? What're you on about, 'where's Simon'? Didn't even know you knew Simon."

She's relieved, in a way, that he seems to be happy to see her, but the larger part of her is just utterly baffled, truth be told.