Um. That's a good question. And I realized that I've been having my fatigue issues for a long enough time that I've been wandering through life long enough that I haven't really thought about them. Well, not until I was about to fly and hand to create an emergency contact and chose it to be Milli as the closest physically and chosen-familially. But I don't have well defined notions.

I do know that when I'm thinking of someone as something akin to chosen family, there's willingness to provide what I reasonably can - emotional or physical labor or resources - on an as-needed basis. And, of course, "reasonable" and "needed" can be very fluid. A big enough crisis stretches what may be ordinarily reasonable and what can be called a "need" varies based on circumstance. (A tired person might "need" enough rest to have someone fetch a few minor things if it's convenient and along the way; but a person unable to move due to physical disability needs some method of accessing things out of reach.)