On the one hand, he's being upfront and isn't planning on bringing it up with the drago in question. On the other hand, he's clearly thought about this. Shura takes a long drink from her glass, not quite finishing it. But besides that, she doesn't give much of a reaction.

"I knew you were one before, so this doesn't really change anything." Because, let's be real, Shura expects this kind of thing from Strange by now.

"As for bein' a dumb idea--well, yeah. But that was just one part of the problem, wasn't it? It'll be years before he's grown up, so who knows what will be happenin' by then." In their current state, they might not even be able to complete the ritual! Shura hadn't forgotten the sight of scales on her reflection. She pauses, about to say something else, but she finishes her wine instead.