Meaning: A female person spoke in a very quiet and gentle manner to the person she cares for the most.
Choice of Words: Using "She" as a pronoun referring to a female person. "Whispered" is a verb that means to speak very softly. "Softly" is an adverb that means in a quiet or gentle manner. "To" is a preposition that indicates the recipient or direction of an action. "Her" is a possessive adjective that refers to something belonging to a female person. "Best" is an adjective that means most excellent or desirable. "Friend" is a noun that refers to a person with whom one has a bond of mutual affection.