I think that maybe one could consider the relationship I had with my female mentor (at secondary school, a mentor is your class' go-to for personal and educational problems) one of transference. She was very sweet and willing to do a lot for me. I loved her, but I couldn't rely on her because she couldn't give me the help I needed, so I relied on a fantasy that she did certain things, that she helped me and made me feel better, that she would do X if I did Y.. It wasn't very realistic, but it got me through a difficult time when I wasn't yet seeing a therapist.
I'm good at living in denial, by the way. So it isn't at all unusual for me to pretend something makes me feel better and then believe it.

However I didn't have many problems letting go of the fantasy. I don't love her anymore, but we haven't had contact in the last few years either. I do love the things she's done for me, and how she tried to help me. And she's still a role-model - someone I'd like to be, but know I'll never be.

Not sure if this is transference or not. I have never experienced transference with T's, although I have battled what one could probably call hostile transference with my Pdoc, but that's really just a fear and mistrust of doctors resulting in PTSD from medical torture.