Courfeyrac can be terribly charming. For someone with such a grand ego, he can even be remarkably kind. But he can also be quite dense from time to time - and frankly, he is still in the process of learning the intricacies of the modern fairer sex. And so while he certainly detects their guide’s suddenly sour expression, he cannot imagine the reason behind it. Exchanging a slightly wide-eyed look with Marius, he replies, “We follow your lead, mademoiselle. I swear it."