I lost a client recently. I wondered why. She said to me that my service had been great over the last eight years, and she could not have been happier. It was just that someone else was cheaper.
I had always had good feedback from this client. I visited her at her home at least once a year and spoke to her often. It is not as though she could have felt neglected. In effect she praised the value of what she had without ultimately appreciating it enough to stay with me.
There is no lesson to be learned here other than that we will get knocked now and again. We just have to move forward with confidence.