The narrater at the end said. Sometimes our worst sins come back to haunt us.
I don't think these women know what they're doing. Or the long term emotional trama that comes
with that. This woman met her son, and was enjoying talking to this kid. That kid would have been
her son. So many wonderful possible memories, that could have happened.
These women are messing with a time paradox, they don't know what they are doing.
And they will always wonder.