>>279937946
Nayuta in the same scene was talking about how she wasn't enjoying herself at all.
>Nayuta tried her best to fend the mob off, she just couldn't
That's hard to believe when we saw her controlling devils like Justice that are way stronger than a pack of humans.
Also up until the end she was still worrying about having Denji's approval, which is why she had someone carry him away from that place.

We already saw how actually ruthless devils behave when it comes to people, thinking Nayuta was in any way like that is insanity.
It's why she didn't give out a clear answer to the question about Fumiko.