Identifying the Author's Tone in Fiction

In her latest novel, the author reflects on the complexities of human relationships through a series of interconnected stories. The characters struggle with misunderstandings and miscommunications, illustrating the theme that honesty is often difficult but crucial. One character muses, 'If only people said what they truly felt, so many problems could be avoided.' Throughout the narrative, the tone is a mix of melancholy and hope, as the characters learn to navigate their interpersonal challenges.

In this context, what is the author's tone in the excerpt provided?