She looks appropriately embarrassed about the old commentary but also realizes that she'd never considered that Doc McCoy hadn't always had a striking resemblance to Cookie Monster (which she, at least, has enough sense not to mention out loud). Or that he might have been a good person to talk to about her own struggles with her powers back home. 

And anyway... "1973?" The look she gives him is similar to something she'd give someone with two heads. Because as strange as all of this has been, somehow that feels the strangest, leaving her with the most disturbing sense of vertigo. 

Then... "You found a way to... control it? Suppress it?" Which, for someone like her, piques her interest even if it also makes her feel unsettled.