Ox/Leo and Dog/Capricorn meet at 58-63%, a cross pairing of two famously reserved hearts. One hides every feeling behind a profound personal silence; the other is taciturn enough to hush a room without trying.
Both love more than they say, by a wide margin. Ox/Leo hides its devotion better than most and needs outside affection to jump-start its sentimental engine; Dog/Capricorn keeps its heart laced into a whalebone corset. The loyalty underneath is enormous; the ignition system is what is missing.
Two quiet, dutiful signs make for calm, orderly, and dangerously sparse conversation. Ox/Leo covers every mistake in silence; Dog/Capricorn's taciturn manner closes topics before they open. Whole seasons can pass unsaid.
The standoff is the conflict. Each waits for the other to speak first, and Ox/Leo's tendency toward excessive micromanagement meets Dog/Capricorn's staid stubbornness head-on. Nothing explodes; things simply calcify, which is worse.
Canon prescribes playfulness for Ox/Leo and candy and flowers for Dog/Capricorn, and each can supply the other's cure: the lover who loosens Ox/Leo up earns a lifetime of devotion, and small romance quells Dog/Capricorn's quiet unrest.
At 58-63%, Ox/Leo and Dog/Capricorn are workable with effort: two deeply loyal vaults that stay locked unless one of them volunteers, repeatedly, to go first.