What I've been mulling about concerning what we owe each other suddenly fell into a simpler pattern for me today:
What we owe strangers and acquaintances: at least respect.
What we owe our friends: at least respect plus solicited attention.
What we owe the people we claim to love: at least respect, plus solicited attention, plus unsolicited attention (that is, checking in just to check in -- not waiting to be specifically asked for attention or help).
For details on what I mean by respect, and what I mean by love, I refer you to the earlier post on this topic.
5 years ago