De amore or The Art of Courtly Love, as it is known in English, was written in the 12th century. The text is widely misread as permissive of extramarital affairs. However, it is useful to differentiate the physical from without: romantic love as separate and apart from courtly love when interpreting such topics as: "Marriage is no real excuse for not loving", "He who is not jealous cannot love", "No one can be bound by a double love", and "When made public love rarely endures".[32]