I am not sure why you feel what you feel, but maybe journaling about it would help you understand.

She doesn't reply because she wants to be consistent. She's not going to give into your tantrums and your demands if she has already said no. It's a healthy thing to do and you insisting she change and do what she isn't comfortable with is a very unhealthy thing to do. I'm not saying you should feel bad, because therapy is the place to bring all that out and work on, but I do want to tell you that she stuck to her rules even when you pushed her to break them. Why does it make you so angry that she doesn't respond when you already know she won't?