[Well now, if she's stumbling over her words, then this really means something.]

We are all our own worst critics, no? I would know, apparently I'm the worst when it comes to that. His compliments may be something he sees that you can't.

But hmm, your hesitance, is it because you are not human and he is? Is he? That and-- [She gestures at her own face, since not everyone in the flower shop knows.]