Scorpio’s relentless focus will be supported by Capricorn’s need for structure, in this rather serious relationship. Both of these signs can be controlling, but they should be able to blend their energies rather than battle it out. Sun in Scorpio may dominate, but Moon in Capricorn will make it quietly clear that she will not be pushed around.
Sun in Scorpio is serious about whom he wants, to the point of excluding everything that doesn’t interest him. This sort of attention can be flattering for his partner, but can also become unnerving (depending on his lover’s tolerance for intensity). Along with his do-or-die seriousness, Sun in Scorpio can be controlling. Whether he’s merely stubborn about setting his boundaries or flat out paranoid about his partner leaving him depends on how healthy and secure he is. The upside to his fixed personality is iron-clad faithfulness; once this sign has committed himself to a relationship, it will take a literal or metaphorical death to shake him loose.
Moon in Capricorn may want to be with her lover, but she doesn’t need to be. At her core she is a loner, and can survive quite nicely on her own. Moon in Capricorn will bring some of this isolation into her relationship, and her Shadow can manifest as walls of defensiveness. But for the most part, this Moon makes a solid partner who will approach her partnership with focused determination; she’ll be the one in control at home.
Sun in Scorpio will resonate with Capricorn’s sober energy. He’ll be encouraged that she treats his commitment with respect, and she’ll feel secure that she has a partner who wants to build something long-term. If anyone understands Capricorn’s occasional need for isolation, it’s secretive Scorpio (although he may attempt to investigate when she pulls back). If anyone can withstand Scorpio’s relentless investigations, it’s Capricorn. No one breaches her walls, and she’ll calmly but firmly tell him to back off.