Yes, of course. Attachment is a two-way street and it's only natural for a lot of people to become attached to others who share so much about themselves as therapy clients do. The work is very intimate toward the client's personal and most important goals. Of course attachment develops. At the same time, it's very important for therapists to be aware and deal with their own emotions in such a way that their attachment to clients never comes before the clients' needs. If your therapist wants you to go back as you suspect, I would hope the reason is that she sees your need and potential to gain more from your work together, rather than her own need for you to go back to her. You could think of it in the way a parent has to gradually let go of his child in order for the child to explore, learn, and grow into an autonomous person. Whatever you decide, I hope it will be best for you.