I really was fortunate to have a T who never cancelled except when he had to have surgery. My feeling then wasn't anger or missing him, but fear that he might die (it was a serious surgery). And he pressed me to talk about it when he returned, and shared his fear that he might die, too. Any other missed sessions were planned well in advance--conferences, meetings and such--or were the result of my illness.

I definitely think it's important to share those feelings with your T. They often aren't about T, but more about something else that you're dealing with. The fact that she's asked you shows that she is prepared to accept the feelings.