That's definitely not right.it is saying that she might fi d something else shed rather do which is not a kind message. You handled it better than I would have for sure. The only time my T has done anything similar was when she has been traveling and is worried there will be a delay . like " I plan to see you Monday but we are going to my dad's house up north and coming home Sunday. if the weather gets bad I.may need to move you to later in the day. Or if she is quite sick she will.let me know a day or two before and tell me she hopes to make it but wants me to know she is sick and if she isn't getting better we might need to reschedule.