Every relationship goes through stages. Early on the other person cannot imagine being without you. The slightest suggestion that you might not be available at some point is reason for concern. They want to be close to you. They are drawn to you and you relish in it.
Then there’s this moment…
Something comes up to suggest you might not be around as much, and there’s no protest. The time is past when they were concerned about always having you around. They can live without you. They know it. You know it.
The question then becomes can you live without them.