In the narrative, the character feels a compelling need to express her joy, and Matthew becomes her chosen confidant. Although she is aware that he may not be genuinely invested in her happiness, she still believes it's important to share her feelings. This highlights her desire for connection and communication, even with someone who may not fully understand her sentiments.

The excerpt reflects a deeper truth about emotions: joy, when kept to oneself, loses its impact, while sorrow can intensify when faced in solitude. By sharing her joy, she seeks to enhance it, emphasizing the human need for companionship in both happy and challenging times. This theme resonates with the idea that relationships play a crucial role in how we experience our emotions.