In Calvin Harris's song "Sweet Nothing," the lyrics depict a relationship that has lost its substance and meaning. The song begins by describing how the person being addressed took the singer's heart and held it in their mouth. This implies that the relationship held some promise or love initially. However, as the lyrics progress, it becomes apparent that the other person's words and whispers have had a negative impact. Each word spoken by them empties the singer's heart and leaves them feeling hollow inside. The repetitive use of the phrase "sweet nothin'" emphasizes the emptiness and lack of substance in the relationship. The singer expresses their frustrations and disappointment in the lack of genuine love or effort put into the connection. They mention putting their faith in something unknown, implying a desire for a more fulfilling and meaningful relationship. As the chorus repeats, the singer mentions being tired of hope with nothing tangible to hold onto. They find it difficult to learn and love in this situation because the other person keeps giving them empty words and promises. Towards the end of the song, the singer recognizes that it isn't enough for the other person to simply say they care. The lyrics highlight that actions speak louder than words and that the words being spoken are just empty air. This realization only adds to the growing frustration and sense of emptiness in the relationship. Overall, "Sweet Nothing" tells a story of a relationship where one person's lack of genuine love and effort leaves the other feeling empty and dissatisfied. The song explores themes of disappointment, emptiness, and the desire for a more substantial connection.