I went through this almost exactly the same in 2010. I did not know what I was going through - it was so intense I thought I would not survive it. I was then helped by people explaining Adult Attachment disorder. I soon came to realise I had attached to my therapist like a small child attaches to the attachment parent figure and it was incredibly tangled up for me. I felt deep love for her some of it sensual in a small child sort of way. I was almost destroyed by the enormity of grief and pain after I had my last NHS session with her. I find most therapists don't understand the agony of attachment disorder/developmental disorder and seem to want to label us as depressed of borderline personality disorder.