I want Cyrano to come live next door to me. I was going to say "maybe you can have someone else tell her" but he's right. She said not to contact her. So don't.
And I think the main question in my mind would be what you would want to achieve by telling her. What reaction would you like out of her? Are you hoping maybe this is the thing that will make her see the light, after all? Are you hoping to find sympathy and connection and friendship there, after all? If you scrape under the surface -- is there maybe something more and deeper there than "I think I should tell her because she should know"...?
I know for me, there would be. And it would be, "THIS will make her sorry for all the bad stuff she did to me." And that's not going to happen.