Final answer:
The emphasis on couple dances in Europe evolved with the ethos of courtly love and chivalry during the Crusades, reflecting the cultural and intellectual growth of the time. Despite crusading becoming less common, crusading ideals and romanticization still influenced European society and its perception of other cultures.
Step-by-step explanation:
The European emphasis on couple dances evolved during the time of the Crusades along with the development of chivalry and the ethos of courtly love. This culture, promoted in the courts of royalty and nobility, flourished in the vernacular languages through works spread by troubadours and included poems, stories, legends, and popular songs. As time progressed, despite the decline of the crusading movement, these cultural forms and the romanticization of the Crusades remained influential within European society.
During the 13th century, besides warfare and expansion, Europe saw significant cultural and intellectual development. This period of turmoil and invention also saw the increase of trade, the growth of European kingdoms, and improved farming techniques, which are reflected in artistic representations, such as 'The Wedding Dance', that illustrate social life and values of the time.
The decline in crusading was due in part to several factors, including changes in political landscapes, the increased formation of nation-states, and the refocused interests of European monarchs towards domestic issues. Nonetheless, the imagery and ideals of the Crusades endured and continued to influence European culture and perception, as evidenced by the lasting negative impacts on the relationships among Christians, Muslims, and Jews that arose from the era.