Maybe it is a bit harsh to some. For me it was the attitude to me cancelling that bought the negative response.
There was nothing like, that’s ok, maybe next time, or any form of humanity in the reply from her, just bam, you’re blocked don’t try contacting me again, done.
If we get cancelled how many of us go, ok that’s you blocked and I won’t be going back to you. More like we'll say no worries hope everything is ok see you next time.