I didn't stand up to her.
I wish I had.
The very first time she told me to stop doing something that annoyed her, I could have said, "I'm fine the way I am thanks." But I was scared of what might happen if I had my own voice and used it. I think the biggest fear was that no one would like me. Ironically, it turned out that when I just adapted to everyone and pretended that their opinions were mine, no one liked me anyway.
Standing up to a bully effectively means being assertive. Stating what your boundary is without being aggressive. It still scares me today and I'm nearly 40 (I know, I know...) But I'm getting better at it.
How do you do?