Who's Afraid of Virginia Woolf?/Fridge

So, presumably, everyone else on campus knows that George and Martha don't have any kids, and a few questions or even casual remarks from Nick and Honey would make this clear to them?
- It's explicitly stated that Martha broke a 'rule' by telling others about their son. It's quite clear that Martha and George say nothing to anyone about their son. That's a point in their favor for not being batshit insane.