Hi all, new here and looking for input

I had a T session, well sort of. It opened with T saying we needed to discuss his flexibility around appointment times. Minor detail. I asked ok did we have to? He was cold and said yes we did. So the conversation starts (he had said it was ok to be early but actually was not ok with me being 10 minutes early) I said Wow....I do not want this beacuse I felt picked at.

He replied that he wasn't interested in an argument

I said me either, that I didn't understand what was going on
He said I should probably leave. He gave me my money back he left the room

After 5 minutes I went out and asked if this was actually how things would go?

He came back and we spent the next while discussing why he reacted and what I had done wrong

At the end, knowing my fear of anger, he said that he wasn't angry and felt relaxed and ok. I replied that I didnt feel ok

I still don't because I can't get over the fact that he left. Not interested and just walked out.

What do I do?