Beautiful! I love that quote. Put yourself in the shoes of a Victorian lady. The only time she can really be close to a man is when dancing. These days, we notice we are falling in love when we like being near a person. In those days, dancing was how you were near people. When a lady enjoyed dancing, she would spend time with gentlemen. Spending time in close quarters with gentlemen, when both people are dressed up and at their most attractive, can certainly lead to feelings!
A predilection for dancing shows a willingness in the participant to involve himself with his partner. At the most basic level, a gentleman who is fond of dancing shows a willing attitude toward getting married or falling in love. Someone who does not want to dance at all reveals a reluctance to get involved in the first place.
thanks so much for your help! and do you understand this one? "and if you lament over him much longer, my heart will be as light as a feather"