Fire on earth
Earth slows fire and fire warms earth. Taurus provides the material basis for the life Leo wants to be seen living, and Leo provides the occasion that stops Taurus's comfort becoming purely private and slightly inert.
Where the elements clash is in what counts as worth doing. Taurus values what can be enjoyed directly: the meal, the house, the quiet afternoon. Leo values what registers: the event, the gesture, the thing worth telling someone about. Neither dismisses the other's preference outright, but each keeps having to be persuaded of it.
Two fixed signs
Both hold. That is the defining structural fact and it explains most of the pattern. Neither sign is built to initiate change and neither is built to accommodate it, so the relationship is durable and slow to correct.
An argument between fixed signs does not escalate and then resolve; it settles in and becomes part of the furniture. Leo withdraws its warmth and Taurus goes silent, and both wait, and the waiting can go on far longer than the original disagreement warranted.
The Sun and Venus
Leo is ruled by the Sun and Taurus by Venus. Both are benign bodies by classical reckoning, which is part of why this combination is generally comfortable rather than combative.
The Sun wants to be recognised and Venus wants to be comfortable, and those two wants are compatible until they compete for the same resources. Where Venus and the Sun actually sit in the two charts determines how often that competition arises, and the sun signs alone cannot tell you.
Where it grinds
Money and display. Leo spends to mark the moment and Taurus spends to own something lasting. Both regard the other's choice as waste, and because neither yields, the same argument recurs in a new setting every few months.
The second grind is possessiveness against attention. Taurus treats a partner as part of the settled arrangement and does not expect to be reassured about it. Leo needs to be admired and gathers admiration wherever it is available. Taurus rarely says anything about this until it has been building for a long time.
Two suns describe a population
Every person born within the same three weeks shares a sun sign, so this is a description of a broad tendency rather than of two individuals. Couples with these suns vary enormously.
The Moons determine whether the household is restful or tense. Venus determines what affection is supposed to look like, and it rules half the pairing. Mars determines whether a stalemate ever breaks, and in a fixed pairing that question carries more weight than usual. Compare those four before concluding anything.
Questions people ask about this
Why do Leo and Taurus argue about money?
Leo spends on the occasion and Taurus on the asset. Both regard the other's spending as waste, and neither is inclined to give ground.
How long do disagreements last here?
Longer than the subject deserves. Two fixed signs settle into a position rather than escalating and resolving, so standoffs can persist for months.
Is this a stable pairing?
Very. The difficulty is not instability but the opposite, since arrangements neither party wants can continue because neither moves first.
What is more informative than the sun signs?
Moon, Venus and Mars in both charts. Mars in particular, because it governs whether a stalemate ever gets broken.