An important part of courtship rituals in the Middle Ages, the exchange of lover’s tokens often cements a romantic partnership—just as gifts more generally cement relationships between people throughout
The Decameron. It’s also notable that the gifts are expensive—she punishes her uncouth husband not only by cheating on him, but also by stealing from his wealth. When the Nobleman climbs into the room as fast as saying “knife,” the pun is describing his speed while at the same time making a joke, since knives are often symbolic of male anatomy. The consummation of the affair also fulfils the day’s theme—perseverance—since it took such careful planning and work for the Noblewoman to fully communicate her plan to her potential lover. Filomena’s prayer at the end is challenging, since she seems to be praying that God would help people find lovers—which is contrary to Christian morality and religious teaching. While it’s possible that her prayer is simply blasphemous and indicates a late-medieval, humanistic turn away from traditional Christianity, there are other potential interpretations. For example, the Noblewoman and her lover are equally matched through their wit and intelligence (as well as their class), and well-matched, mutually satisfactory romantic relationships are a frequent theme of the tales, so it’s possible that this is the fate for which Filomena prays.