So to sum it up and M you can correct me if I am wrong. You do not want to discuss anything with her other then the children. You still have issues with your NGS so you wanted to state one more time that you don't want to discuss anything but the children. Your hope is that she respects your wishes so you do not have to ignore her other questions in the future. So if you want to call it a "boundary" then the consequence of breaking the "boundary" is your silence.

I think there is a slight language barrier that is causing some of the confusion.

I can promise you she will test your strength regarding you stating your "boundary".