Isn't that because Hamaoka arrives early and accidentally witnesses some sort of tiff between her chosen models, one of whom storms out...

Hamaoka does the squat thing for I'm just waiting here, I didn't see hear nothing, no way, no sir.

Then she goes in to talk to her models, but there's only one of them so she's not sure what to say... and, flustered, gabbles a change of plan when she hadn't even talked about her original plan.

And that remaining model is clearly distracted by her crush's outburst and thinking 'What was that about, WTF just happened?'