Doogie,
I think most t's do know how much importance their clients place on their sessions. But sometimes, things come up and it can't be helped. I'm sorry you had to miss your session though. It feels awful when you're all ready and prepared to talk about something, and you need that support, and then you end up having to wait another week! When I've had to miss a session, i sometimes journal about how i'm feeling and what i want to talk to my t about when i see her. If your t allows email, that might be a way you can at least be in brief contact until you have your next session.