Transference happens in all relationships. Sorry you got a T you felt couldn't handle it. It's about your past/present relationships "transferred" onto her (and her "countertransference" to a certain extent, her relationships transferred onto you). We've all had several people in our past who have impacted on us, good and bad. It's like dreaming about something that happened "today," if it's strong/meaningful/bugging us enough, it happens.