Thing is, no one is truly indispensable. Anyone could get hit by a car any time and the world would continue to go on. We may think we are, or someone close to us is, indispensable. But that is because our minds are incapable of conceptualizing a time and space without us, without that significant other. Yet when we die, life goes on for everyone else. Time goes on. Work goes on. Perhaps with some adjustments, minor or otherwise, that accounts for the fact of your absence. As things fall apart, so things go on.
My heart aches for the camel who broke his back on the last straw.