Aries and Libra are opposite signs, and their differences can draw them strongly to each other: each recognizes in the other an ability they find hard to develop.
In everyday dealings, Aries may grow impatient with Libra’s indecision and their wish to stay on good terms with everyone. Libra, for their part, may feel uncomfortable with a frankness they consider rash or undiplomatic.
Complementarity requires accepting that they are not the same. Aries’s decisiveness and Libra’s ability to consider others can enrich each other if they are not used to put each other down. When there are other strong affinities in the synastry and both take part in the adjustments, those differences can become easier to understand and less wearing.