Hi Bluebutterfly,
I think that each of us has a unique relationship with our therapists. So, whichever avenue you take, will be the right one for you. I don't really have an opinion about how you or he should handle this. It seems positive you had at least a partial session that day and that he looked shocked when he walked in. And I do think it's healthiest not to let your feelings fester.
Pink said something interesting about how our relationships change over time. I recall about 3 or 4 months ago talking to T one weekend and there was interference on the phone that made it difficult to hear him. (He was at home.) I didn't know if it was my phone or his but I suffered through it.
This past weekend I spoke to T and heard the same noise. I said to him, "This is a ****** connection." LOL
So, over time I have become much more relaxed around him and more able to express my true feelings in the moment. Oh there's miles to go, but I guess the point I'm making is that your relationship with your T is where it is and you wll say what you can when you can.....geeze, that sounds wishy washy doesn't it?
Good luck.