We will find 6 combinations that do not have the worst chance of falling in love. These do not necessarily have to be combinations that will not work in a normal romantic relationship either. Only the primary phase of falling in love is much easier for them. Let's see.
There is a reason they say "opposites attract" and not "opposites fall in love". That's because a new relationship is always attractive, but if you don't have enough in common with someone - in important and especially fundamental ways - it's pretty hard to build the foundation of a relationship that leads to real feelings of love and intimacy. This does not mean that you cannot fall in love with them and have a happy and healthy relationship. It's just a little more difficult, so the zodiac couples who are least likely to fall in love are the ones who see the world so differently that it's hard to get on the same page and start creating a happy relationship.
Zodiac isn't destiny, but it can be a very useful data point, especially if you're ready to meet someone. If you focus your energy on people who are more likely to be on your wavelength, you can "click" more easily, and this behavior can help you meet your "soulmate".
Aries & Pisces
Aries and Pisces have a hard time connecting because they both operate on very different wavelengths. Aries are much more spontaneous and passionate in their relationships, while Pisces take more time. This is also why Aries can seem quite impatient and sometimes find it difficult to get the approval of the fish. If the connection and bond is successful, it can be more solid.
Gemini & Capricorn
A Gemini-Capricorn romance is like the union of earth and sky. In other words, it will take an "epic" amount of work. Gemini is the most important air sign. They tend to go with the flow and follow their curiosity wherever it takes them. They are also curious, impulsive and inappropriate. Capricorn, on the other hand, is very down-to-earth. This is an earth sign that chooses one goal and sticks to it until the end. These two different approaches to life can be a major point of friction in a relationship.
Cancer & Aquarius
When the most and least emotional signs in the zodiac come together, you know it's going to be very difficult to get on the same wavelength. Cancer is a water sign that longs for infinite depths of emotional empathy. Aquarius is an air sign that leads with its mind and has no patience for melodrama. While there are ways these two can benefit and complement each other, the trick is to find a way to create an emotional connection before Cancer is too hurt by Aquarius' aloofness—and Aquarius is turned off by Cancer's need for emotional validation.
Leo & Taurus
Leo and Taurus have a lot to offer each other if they can get over their egos long enough to realize it. Leo is warm and loyal, while Taurus is concerned with family and building a comfortable and stable life. They want the same things long term. However, getting to the finish line is difficult for these two as they are both too stubborn to back down from a fight. Both signs are used to getting their own way, and when it's different, or there's an opposite on the other side, the result can be explosive.
Virgo & Libra
Virgo and Libra may be neighbors in the zodiac, but they are a little too close for "comfort" when it comes to love. Libras value peace and harmony in their lives to the point that they will do almost anything to avoid conflict. Virgo prides itself on being very direct and honest in its communication. Although they don't mean to start an argument with this style of communication, Libra can interpret it as hostility. In return, Virgo will quickly become frustrated and feel as if they are not being heard.
Scorpio & Sagittarius
Both Scorpio and Sagittarius are tough negotiators. Scorpio wants a stable partner so they can build trust. Sagittarius needs freedom and a lot of independence. Together, side by side, they trigger the deepest fear of relationships, making it very difficult for them to open up and show the kind of vulnerability that is necessary for a true love relationship. Sagittarius discovers Scorpio's jealous and possessive side, while Scorpio makes Sagittarius feel trapped. Passing through these points of view is a tremendous challenge.
Again, astrology is not a guarantee that you will connect with someone or not - it is more of a set of guidelines and a personality "blueprint" that can point you in the direction where you are likely to have more things in common with your future partners. If you've had bad luck finding someone to connect with, it might be worth exploring relationships with people you're more in tune with, astrologically speaking. But always listen to your heart.