Her eyes narrow, and she doesn't let go. Not immediately. There's enough fuss towards the far end of the room that the reinforcements are likely about to arrive and so her options are trying to stall or force him to stay, or just letting the bugger go and see if she can find out more later. Ducky might be able to get a line on him... (yeah, good luck with that, Crabb.)

"'Simpler', he says, like I have any bleedin' clue about the details—" She grits her teeth and grumbles, grip tightening another notch before she huffs and lets go, pointing at him instead. "I ain't gonna forget about this, mister."