...All right, that one is a bit more theologically complicated.
First thought: horrifying witchcraft, refer immediately to the Inquisition and possibly the Archbishop herself. This is outright Necromancy that they should have caught already. It shouldn't be him making the decision down in the local town temple, that's the whole point of the employment of the faithful here. On the other hand, these are delicate matters. The Archbishop's placement is not uncontroversial and her attitude of, let's be frank here in his own mind if nowhere else, 'I haven't been renounced yet so I Have A Dispensation', isn't exactly encouraging...
Second thought... he can't actually sense anything unclean about this woman. Would he? Is it invisible after the actual act itself?
Third thought: normal beauty treatments aren't illegal. Elves can reshape themselves in some ways. For that matter, divine healing reforms the flesh. That itself isn't witchcraft. Nor is surgery, technically, though it's not exactly encouraged. Does this count as such? If it were real, and not unholy, and above all not wizardry but available to the common people, it could be a good thing...
He doesn't know. He is a judge and minister and healer of men, not a scholar. This is clearly a matter for disputation.
"I see. ...You are still not a slave and this is not a command, because that is not my profession, but I strongly recommend you speak with the scholars in the Chapel at your academy. That sounds like it might be very dangerous. Besides, we had hoped that greater wealth would bring us greater freedom. It is often thus. It was in the old days."