Heart Of Stone

The speaker describes himself as someone who has hurt many women and cannot explain why he keeps behaving this way. He is interested in a new girl, but she does not respond as he expects. The repeated claim that she cannot break his heart suggests he is determined to appear invulnerable, even as his attention to her hints that he may be more affected than he admits.

“Heart of stone” is a metaphor for being emotionally hard, closed off, or unable to feel love. The phrase “knock her off her feet” usually means to impress or overwhelm someone, but here it also sounds like the speaker wants to unsettle her. His warning that acting sad will “make me glad” presents his coldness as a kind of power over her.

The song may be read as a boast, but it can also sound defensive: the speaker repeats his toughness so insistently that it raises the possibility that he is trying to convince himself. Still, the lyrics do not clearly reveal whether he feels fear, regret, or genuine indifference. The girl’s refusal to be “broken” may signal her strength, while his rejection of love may be both a chosen attitude and a shield.