A familiar story with questions. II

[Coconut]

Let me ask you, if she pretends like this never happened, what will you do???

A boundary isn't a rule, you can't say "You don't get to pretend.." and call it a boundary, a boundary is how you control what goes on around you. So to turn that into a boundary, it would be something like:

"If you pretend this never happened, then I will not communicate with you directly, only through our lawyers."

That would be a boundary because you are not telling her what to do, you are only saying what you will do if she does it.