The strings aren't connected person to person. They're connected the tapestry the Fates weave.

You could say they're connected in that way...

[ But his voice trails off because he has seen how he separates people, the pain, anger, and fear they feel. Even if they may reunite in the Underworld, he separates them in the way the string metaphor suggests.

His job's important. It has to be done. It's the reason he was born. He helps free people from their pain, allow them to rest. He... shouldn't start to feel guilty for it. ]