No, she didnt apologize straight away.
Basically she thanked me for coming back. She said that she knew she had made a mistake, and that she had replied to my request to cancel the session, out of anger.
I had been right, she had heard my message (in which i said i wanted to cancel the session) and presumed i was running away and got angry.
She said that she had 'taken on' my anger.
I had had a really sh*tty week previous to that, as my family were visiting and i find them-especially my mum- incredibly triggering. And i always go downhill in regards to depression, anger, feelings of worthlessness when they decide to visit.
At first, i was really defensive, and thought she was blaming me for the whole thing but as we talked through it, i actually realised she was right.
She apologised, and so did i, and we agreed that it was just an error in communication and a testament to our strong bond that we are able to have todays appointment to work through it.

Although the downside is that i have promised to work on my anger...i HATE anger, and never normally admit to being angry EVER!