I think we experience transference for a lot of different reasons. In my case, it may be because I long for a maternal figure to fill my void, but for others it could be due to other expectations that they project onto their Ts. Anyhow, it's usually very easy to feel attached to someone who shows us so much concern and is all about us for that 1 h, and it's only human nature to want to know more about them when they know every little thing about us yet reveal nothing about themselves.

This is all my take though - not meant to be professional advice or anything (: