I don't mind attachment to a therapist that I like and have a good relationship with, it wasn't extreme for me. But I was relieved when my obsession with therapy in general lifted.

I experienced it in an extreme way with an ex-bf though - it was very much like an addiction. It was pretty destructive and when I now think back, I wonder why I stayed in that relationship with someone who was such a bad match for me... it was a one time thing, not my usual relationship pattern. It created a bad tendency though that was quite hard to break.