WIHWT: What prompted this?

Treated you like a rusty blade A throwaway from an open grave Cut you loose from a chain gang And let you go And on the day you said it’s true Some love holds, some gets used Tried to tell you I never knew It could be so sweet Who could ever be so cruel, Blame the devil for the things you do It’s such a selfish way to lose The way you lose these wasted blues These wasted blues Tell me that it’s nobody’s fault Nobody’s fault But my own That it’s nobody’s fault Nobody’s fault But my own…