I’m not an expert but it looks like someone with a closed mind - he doesn’t want to hear what he’s hearing.
My first thought was the obvious, that he’s visibly, and not so subtly, shushing her. I think you’re 100% right that he’s closed minded to her comment as well.
Yes, his brow is pulled down tightly and the eyes narrowed a bit, that is a sign he is skeptical or critical of what he is hearing.