Won't drip feed or go into specific things she does as it's too long but basically:
Cold to my children
My heart beats fast in conversations with her, good or bad
I feel as though I walk on eggshells around her a lot
She makes me feel severely scrutinised and judged when I'm talking to her
I feel very uncomfortable around her generally
Is this a toxic friendship yes? I just need to move on don't I? Feel like I need clarification though. Never felt this bad before in a friendship aside from the school bully when I was young.