"I have no idea what you're talking about, Steven." But boy, does she look extremely uncomfortable as she carries him over the glass shards until they're outside again. "Why would Peridot be here? Or Amethyst? Are Pearl and Garnet here too?" She's deadset on taking Steven to them, so it's probably no surprise that she takes to the air.

Clearly whatever it is that is wrong with him needs to be fixed, because Steven shouldn't look like he does. Does Peridot know how to fix whatever it is? Steven says that time is apparently funny here, and that he needs to stay, but Lapis thinks otherwise. Maybe whatever is wrong with him physically is affecting him mentally too.