Good
astute - Ability to understand things quickly and clearly, and to use the knowledge well
From a very early age, Gail instinctively knew everything about business, and and after college she proved to be an astute business woman, and became a millionaire before the age of 30.
reconcile - To bring two or more people or groups into a state of harmony or understanding after a disagreement or conflict.

After a long argument, they managed to reconcile their differences and rebuild their relationship, realizing how much they valued each other.