Magician Trucy is right, the winter ball is the answer! [ But wow Trucy all her stuff is 100% legit obviously. ]

Um... [ Why is this something they're all okay with, are they just planning to swing-date around?? ] A dance! Dancing at the winter ball, that is the key that will unlock your fate in love. You must dance with your true love, the person they're dating, and... 10 others! Your path will be clear by the... stroke of midnight on the night of the ball!

[ Just don't lose your glass slippers, Archer. ]