Say the hard thing: clear, and not cruel.
A message that ends it without leaving a maybe — plus the two replies for the answers you are dreading.
What are you ending or setting, and how long has it been going on?
Clear beats kind, then be both
Why a message that can be misread is the cruellest version, and the three-sentence structure that cannot be.
The replies you will need
"Can we talk?", "you owe me an explanation", and silence.
When it is not a message
Ending a friendship you will keep seeing, and a boundary with family you cannot avoid.
Questions people ask first
Should I do this in person?
The pack asks first: it writes the conversation plan if that is your answer, and the message if it is not.
I am not sure I want to end it
Then it will not write an ending. It asks one question about which way you lean, and writes that.