In addition to what others said, the therapy stays in the frame. Now your feelings don't bleed out between sessions. If you felt child or strong transference feelings in session, you may have been feeling those in between, and intensified by the email interactions. Familiar to me, with my early trauma and severe neglect, at times it was like laying in my crib hungry and cold, but my mother never coming for me. Those feelings of dependency are very disempowering.

Perhaps now you are only feeling adult feelings and the transference is kept at bay.