Define TAIZ...

Yes!

When some is rude or short temper, the people call them Taiz mizaj (which is negative thing), but just to give a positive spin the that behavior it would called Saaf Dil (which also means someone shoot straight from mouth without thinking, but without malicious intention).

I can see that both aunties are actually agree on inappropriateness of your action, but auntie 2 is clearly on your side and trying to give a bit positive spin by saying it you are Saaf Dil.