You are being more than fair, and I am glad it seems to be working for both of you.
I am surprised sometimes how "entitled" our kids may feel, I know my son always seemed to feel like it was my duty to put up with his antics no matter what. I think we teach them an important lesson when we hold to strong boundaries. Life doesn't have to be fair, you just need to abide by the rules.
Hugs to you for inspiring us all, DeVon.