My understanding is that attachment is what is supposed to happen in therapy and it's healthy. Just thought you might want to know so you don't keep beating yourself up about this. It's a good thing! It has nothing to do with how big your problems are. It just shows you are capable of a healthy connection. Also, attachment facilitates deep work. Do you think you are experiencing insecure attachment? If so, yes, that can be hard. But it's possible that you can work with your T to transition that to a secure attachment so that you are more comfortable with the alliance. Also, you mentioned transference. Attachment to one's therapist doesn't always involve transference, so maybe you needn't look for that if it doesn't seem to be there.

I wonder if being so concerned that you are attached to your therapist is a way to avoid tackling some difficult topics in therapy? Just a stab in the dark...