I have a couple of thoughts. One is that in my experience and reading here, when a t says a person should develop other relationships for support, it doesn't mean that the t is tired of the client, but often that the t thinks (correctly, I believe) that the client probably needs people outside of the therapeutic relationship that they can rely on and receive support from. Kind of a "don't put all your eggs in the same basket" thing. I think mutually supportive relationships with others are a good thing, and it seems to me that most ts want that for their clients. I am not real good at doing this, but I can see that the goal makes sense.

The other thought I have is that your t will be pretty motivated to get to your town. I assume she is seeing other clients while there, so if nothing else the prospect of the loss of income would be an incentive to get there. It's not like they can take a sick day and still get paid.

Your passive thoughts could likely be due to grief. They are not uncommon in grieving people.

Final thought. T has been there for you for 8 years. That is unlikely to change. She will most likely do exactly what she has said she will do.