I am surprised by that too, they leaked Rapunzel everywhere. Odds are Lumiere is as plot irrelevant as Rapunzel, could be anyone but they want to work in the character.
I wonder if Z is just messing with them now, and goes into the bathroom and pretends that a pipe bursts and screams, they rush in and though she is drenched she just says it was really cold. She knows the legend says water harms her but it is wrong, water is her strength or something. So she stages that to laugh at them.
I am not sure about Emma’s concern, could be about Henry, Neal the whole situation, because this Emma is the one with memories of a good life, might be more easily moved to reveal her emotions. She is about to have a sibling and she cannot tell her son? There are crazy things going on, so any or all of it could get to her, without a specific event.
“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass