Square
Signs in a square share a modality but belong to different elements. There is a lot of energy and attraction between you, and friction too: you solve the same problems in different ways. These couples grow through conflict, as long as they learn to talk it through.
Elements
Air and water are mind and feeling. The air partner explains and analyses, the water partner senses and feels. You may be drawn together by curiosity about how different you are, but in conflict you speak different languages. A rule that helps: listen to the feelings first, then look for a solution.
Pace and temperament
Both signs are cardinal - initiators used to starting things and leading. Together you launch shared projects easily, but you need to divide roles, or each of you will pull in a different direction.
Cancer in love
In love, Cancer needs to feel safe. It opens up gradually and looks after its partner like family. Cancer hopes for the same tenderness, attention to small things and certainty that it will not be abandoned. Harshness and indifference hurt it more than it shows.
Libra in love
For Libra, relationships are one of the central parts of life. It is romantic, attentive to its partner and loves to be courted beautifully. Libra wants an equal partnership where both people invest. Rudeness and constant fighting drain it, and indecision can delay important steps.
Why one sign isn't enough
Sign compatibility compares only the position of the Sun. Even two couples with the same signs have their Moon, Venus and Mars in different places - which is why it comes easily to some and takes work for others. Exact compatibility is calculated from both partners' birth charts.
Calculate by birth dates