Why do the changes I choose not to save in a part or assembly get saved in a drawing?

Why is there no option for "Save part/assembly changes in drawing" like there is "Save component changes in assembly"?

If I open a part from an assembly, make a change, then exit without saving I get the option to Keep or Discard changes in assembly.

When I open a part/assembly from a drawing, make a change, then exit without saving I get the option to Save All or Don't Save.

I choose Don't Save because I don't want the changes in my part/assembly.

I assume All changes to unsaved documents will be lost means my changes will not be saved in my part/assembly.

But since the drawing is still open and has the option to save... the changes to the part/assembly are still there!

What? Why? SW just told me the changes would be lost!!!! ???

This is super frustrating when I have made changes to the drawing that are drawing related; titleblock, notes, sheet size, custom properties, etc..

I cannot save them without also saving the part/assembly which has changes I DO NOT WANT.

I can either save all the changes or none of the changes.

But I did not want my part/assembly to be modified!!! I specifically told it NOT to save the changes, NOT to modify the document!

And you cannot uncheck the part/assembly. "This document is a reference of the top-level document that is selected for Save."

So again... Why is there no option for "Save part/assembly changes in drawing" like there is "Save component changes in assembly"?

Am I missing something?