I don't think it has to be good or bad.

And the nature of being human is that most of us form attachments to other people. And people will pass in and out of our lives without warning. And regular attachments to non-therapists hurt, too.

So I don't think there's anything special about attachment with a therapist, nor do I think it is possible to work through it, as in, it ends. It's possible to manage it, sure.