She looks honestly upset, but then, I’ve learned that I can’t read her. The problem with a really excellent liar is that you have to just assume they’re always lying.
We are, largely, who we remember ourselves to be. That's why habits are so hard to break. If we know ourselves to be liars, we expect not to tell the truth. If we think of ourselves as honest, we try harder.
He's the kind of liar who totally forgets what he told you the last time, but he believes every single lie with such conviction that sometimes he can convince you of it.