This excerpt from Neil Gaiman's 'The Graveyard Book' touches on the complex dynamics of emotional attachment and the nature of perceived indifference. The notion that a person who deeply cares about someone may appear unaffected or even stoic is a powerful insight into human relationships. Silas, a character who seems aloof or unemotional on the surface, is in fact someone capable of strong feelings, but these are perhaps cloaked by his demeanor. The statement suggests that true indifference is rare; rather, what we interpret as indifference might be masking affection or concern. The idea that upsetting someone who cares about you indicates an emotional connection is equally profound—this interaction highlights the paradoxical nature of feelings, where caring often leads to vulnerability. The speaker's realization about Silas underscores that relationships are seldom black and white—they involve a spectrum of emotions and assumptions. Sometimes, the silence or non-reactiveness of a loved one can be more telling than words. It also invites us to consider how we interpret other people's behavior: Are they truly unconcerned, or are their actions motivated by deeper affection? By acknowledging this, readers are encouraged to look beyond surface impressions and recognize the silent signals of caring that exist beneath seemingly cold exteriors. The quote ultimately underscores the nuanced and layered nature of emotional bonds—how caring individuals may sometimes appear distant but are observant and emotionally involved in ways that aren't immediately visible.