Snake/Leo and Dragon/Cancer meet at 71-76%, glamour courting depth. The polished, mirror-checked Snake/Leo pairs with the gentlest Dragon in the book, an artist with a work ethic, and the shine and the substance size each other up.
Dragon/Cancer mates for life and loves with a sensitive, once-and-done sincerity; Snake/Leo loves being adored and looks superb doing it. The Dragon's genuine devotion flatters the Snake more durably than any admirer's compliment, and the Snake's polish gives the introspective Dragon something beautiful to come home to.
Snake/Leo speaks with poise and edits for effect; Dragon/Cancer speaks less, feels more, and reads between every line. The Dragon's introspective radar catches what the Snake leaves unsaid, which the Snake finds both flattering and mildly alarming.
Vanity is the trigger. When Snake/Leo prioritizes its own reflection, the sensitive Dragon/Cancer retreats into its shell and stops producing warmth. And a wounded Dragon/Cancer withdrawing is the one audience loss the Snake truly feels.
Snake/Leo learns that being loved for life beats being admired for a season. Dragon/Cancer learns presentation from a master, that its quality work deserves a frame. Ego meets depth and both get better lit.
At 71-76%, Snake/Leo and Dragon/Cancer have good chemistry with homework. The Snake must ration its vanity and the Dragon its retreats; done, this pairing wears very well.