ethics question/discussion

So I had tried to hire an online nutrition and fitness coach for help regarding my specific situation. They provided info on what they would do to support my situation, pricing (it was not exactly cheap, but it was reasonably priced and I could afford it) and their recommendation for what I choose. I asked some more questions and provided more clarifications and they responded again with another response that made me want to hire them. I had identified an issue with my health while I was going through the inquiry process and I had to schedule some medical appointments that could uncover some medical issues I might have. When I disclosed this information transparently to them, they blocked me without a single response. While I know my personal reactions and anger regarding what happened, as I was going to hire them after a response to that disclosure. Do you think this is a normal business practice in this space or is this still a highly unprofessional and terrible ethics response?