romantic - Describing actions, gestures, or situations that are intended to convey deep feelings of love, often in a thoughtful or sentimental manner.

He gave her a romantic gift for their anniversary, along with a hand-written letter expressing his love and appreciation.
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.