Emails you don't want to receive #2

You meet Japan's most boring female for a trial lesson: is in her fifties; still lives at home; works in a museum; can't move to another part of Japan as her father doesn't approve (?!) keeps eight birds in her bedroom.

After 40 minutes you are about to slit your wrists and can't think how to keep the (non-existent) conversation going for another 20 minutes:
"So, have you been abroad?"
"Yes."
""Where have you been?"
"Australia."
"What did you do there?"
"I went sight-seeing?"
"What did you see?"
"Opera House and so on."
"What cultural differences did you notice?"
"Kangaroo"
"I've been to Australia"
"Oh, really."
"Yes, it was 10 years ago."
-
"Er, I enjoyed it."
-
"Er...usually, to make a conversation in English (conversation in ANY language involves speaking you duller than dreary than tedious than mindless than lackluster Dumpfbacke) you usually reply to someone to show that you are interested in what they are saying. Maybe you could ask me a question about my Australia trip or anything else you want to know about me."
"I see. Do you like Australia?"
"Well, that is a big question, what part of 'Australia' do you mean? For example, the people, the culture, the weather, the food...."
"The food."
"Well, there are lots of immigrant in Australia, so the Thai curry was good."
"I see."

Assuming it was as painful for her as it was for me (the worst trial lesson in 7 years!) I give her the opt out Japan stylee and said that I'd email her after my Summer holiday as we both need to be comfortable with each other. Needless to say, I didn't mail. I'd assumed she got the hint, but alas:

"I expected you would give me a email when you returned. So, since I thought you were not in Osaka on that day, I didn't come for the lesson.
I'm sorry if it's my misunderstanding. I might have caused you trouble.

I still would like to have your lesson if you don't mind. Is it ok for you on this Friday 10am?"

Waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah!