Ange is still looking around, but she can't see any picture. She's imagining it must have been on one of the walls around them - since she's not going to assume pictures would just appear out of nowhere in the air, that's ridiculous! - so she's looking at those, but.. it's all just empty walls to her..

So rather than trying to find a picture that clearly isn't here, she turns back to Levi. Is he just hallucinating?

"What was that 'something weird'?"

Might as well ask, regardless of whether it's fake or not. At worst she'll just have a kind of funny story to tell Ragna once she gets home, she figures.