How can I prevent resetting the Screen Time Passcode with my own Apple ID?

Hi, I have a Screen Time Passcode related question.

MY GOAL:

To be UNABLE to reset the Screen Time pass code on my phone using my own Apple ID. To be clear: I do NOT want to be able to reset the pass code.

MY PROBLEM:

I have an iPhone and an Apple ID, which I use to access Music, etc.

Because I have screen time related issues, I asked my partner to set up Screen Time on my phone using the "This Is My Child's Phone" option. My partner chose a Screen Time Pass Code and, when prompted, entered her own Apple ID as the pass code recovery email address.

Because I don't know her Apple ID password, that should keep me from being able to change passcodes.

On a whim, however, I tried changing the pass code anyway, choosing the "Forgot Passcode?" option. When prompted to enter an Apple ID and password, I should have had to enter hers, which would have been impossible. Instead, I was able to enter my own Apple ID and password, and was allowed to reset the pass code.

MY QUESTIONS:

Given that my partner used her own Apple ID when setting up the pass code, why was I allowed to enter my Apple ID to reset the pass code? And how can I fix this so that ONLY her Apple ID will reset the pass code?

Thanks!