Man, a therapist is not a friend... he's a professional who provides expertise, but a friend is soething different. You can't expect to "buy" a friend that way. Sorry but it is the case.
Personally, I never email or call my T between sessions. If necessary, I call to schedule an extra session, in times when I'm not going weekly already.
At a certain time it happened to me to elave the place and realize I had missed some important subject. I just wrote id down for the next week, and then I would just focus better my attention during the session. Sorry, but that is how psychotherapy works.