The plainest word for home here is chosen
The plainest word for your relationship to home is chosen. Saturn in Sagittarius in the 4th house means the base you live on was selected rather than inherited, often at some distance from where you started, and defended since against a quiet pull to move again.
The 4th house is the private ground under everything; Sagittarius belongs somewhere it decided on. Saturn requires that the decision be made and kept, which is why the choosing has taken longer than it takes most people and why, having chosen, you are considerably more committed to it than they are to theirs.
Rootless is the wrong reading
People who watched you move conclude you are not attached to places, when in fact you are attached with unusual intensity to the one you settled on. The moving was a search rather than a temperament. Nobody who knew you during the searching years has revised the assessment, and you have not corrected it.
The weight is having no template
Building a household on principles you worked out yourself, rather than reproducing the one you came from, means every ordinary decision has to be reasoned from first principles: how holidays work, what gets celebrated, what the rules are. That is exhausting in a way that inheriting a template is not, and nobody around you can see the extra labour.
It comes due the year you have to go back
The test is a return you did not choose: a relative who needs care, a house to be dealt with, an obligation that requires you to be physically present in the place you left. The distance was doing real work and it becomes unavailable. Going, with a defined end date stated to yourself, is the version of this you can survive.
A household built on something you believe
What this builds is a home that reflects an actual position: how you think people should live, applied deliberately, rather than a set of habits absorbed from a previous generation. That is rare and it is worth naming out loud to whoever lives there with you, since from inside it simply looks like the way things are done.
You had to construct the rules from nothing
The household you came from either did not supply a workable model or supplied one you deliberately rejected, so your own domestic arrangements were reasoned out rather than copied. That is a considerable achievement performed without recognition. It also means every new situation requires a fresh decision, which is why running a home tires you more than it seems to tire others.
You rest properly somewhere other than home
Because home is where the obligations live and elsewhere is where the freedom is, your system genuinely stands down more readily away than in your own rooms. That is not restlessness. It means periodic time away is a requirement rather than a treat, and treating it as an indulgence has been costing you the recovery it provides.
You built the foundation you were not given
Whatever stability you have was constructed rather than inherited, mostly without a model and generally against a background of movement. You have very little to compare it against, which is why it rarely registers as an accomplishment. Somebody who knew you at twenty would find the present arrangement remarkable, and you would not.
Property is a decision you have delayed for years
Committing money to a fixed place runs directly against your preference for remaining able to move, so the decision has been deferred repeatedly on reasoning that has been available and unresolved for a decade. Whichever way it goes, making it deliberately this year removes a background cost you have stopped noticing you are paying.
You barely know the people on your own street
Your closest ties are almost all at a distance — another city, another country, people met somewhere you no longer live — and the immediate neighbourhood is a place you sleep rather than belong to. That is a legitimate way to arrange a life. It does leave you unusually exposed when something goes wrong nearby and there is nobody within walking distance to ask for help.