Chapter 3. Let the detachment begin

[SH_]

bigy,

Your recent post confuses me.
I perceive it almost as if you interacted with her like you would a child that you are trying to teach respect and email etiquette.

I'm not sure I follow what you were trying to accomplish or gain here.

IMHO tone in emails and text come mostly from the reader of the message.
I read the email you wrote from her as a, to the point , matter of fact, straight to business message. Nothing more nor less really.

I would find it condescending if someone were to speak to me about an email I sent in that manner.

If you had an issue about the last minute change of plans for your s, I would encourage you stick to that point.
It sounds like you would be able to help with your s10 , so it seems to me that there was not really a point to the conversation and pointing out what you felt was wrong with her email.
I would say, pick your battles so to speak.
Maybe I am missing something here, but that is my take on this.