What does a healthy attachment/dependence look like in the therapeutic relationship?

What would the characteristics be? Where is the line between dependence and independence and how do these change over the course of therapy?

I'm curious because I was really attached to my first therapist and tried to depend on him thoroughly. The problem was that I never got over an early trust rupture and had a bad termination to boot.

I have come to have a more solid trust in my current therapist, but I don't depend on him as much as he'd like and I strive to be quite independent. I handle breaks well, though there have been very few of them. I don't obsess about therapy throughout the week, even if I'm struggling. I might obsess over whether or not to email my T between sessions, but that is about it.

Anyway, I would love to hear your thoughts!