Upside: Honesty; mover and shaker couple; strategists; passion and sensuality; strong libidos; confident duo.Downside Capricorn smothers flames (inspiration) of Ram; competitive behavior; Aries grows impatient with conservative Capricorn; optimist vs. a pessimist (or realist).
Aries and Capricorn bring full engagement to love, but have very different natures. There could be immediate clashing, since astrologically, the Ram and Goat are at odds (square each other). The tension could be enlivening to Aries, who loves the chase. Both are ambitious cardinal signs that take charge, and if the kinks are worked out, you're looking at a power couple.
Aries rushes out of the starting gate full of passion, while the more outwardly serious Capricorn takes a reserved approach. Capricorn will want to suss out the long-term potential, while Aries lives in the moment. The Aries fire gets smothered by the heavy outlook of the Goat, and soon looks elsewhere for entertainment. Capricorn is alarmed by the pell mell Aries lifestyle, preferring things to be more settled, planned out.
While these two may sense something very valuable in the other, there is also the hint of danger. This brings two strong-willed people together, each determined to be numero uno. It might work as a long-time friendship that blossoms into romance when both are able to handle the friction.
With Aries as the innovator and Capricorn the tycoon, this pairing makes a great business partnership, and a sense of building a family dynasty. A formidable team, once each understands and respects the very different ways of the other.