I would write her a letter or email if you can find her address, give the power to her though and let her contact you back. I know that is hard, it would drive me crazy to wait. It doesn't mean you can't keep writing her though, just make sure when you write her, this is very important, don't use " you" only use "I" statements. Don't make this about her, if you forgive her for the shit she has said to you then start clean and say " I am sorry" plain and simple. Don't get into the problem, call it the past and you want to move forward with her and the kids in your life, no rehashing the past.

Just my opinion.

Monica