My SIL told me last week that her 5 year old DD had made her cry she had been so nasty. She had got so upset that she couldn't take her to school and my MIL did it fir her.
Now my children have reduced me to tears out of sheer bloody frustration but it's never occurred to me to take it personally.
I would also never show them I was upset.
It's a genuine question. Is it better to show your children you're hurt or show no weakness?