Libra likes to associate with people. They are good at socializing and resolving conflicts, which echoes Aquarius' rational and objective way of thinking. Aquarius likes to think about deep-seated themes, and Libra has a unique softness and charm, which can understand and adapt to Aquarius' way of thinking.
Most importantly, both constellations cherish friendship and stable relationship. Therefore, Aquarius and Libra can establish a long-term, free and open partnership.