Your separation is pretty recent - 10/20. I was in your shoes about a month ago. Started DBin and things have improved.
After a HUGE argument, my wife filed for divorce on Halloween. Went dark and several days later we decided to put that on hold.
I have been DBing my as* off and have made progress.
* Went on a 5 day vacation with wife and kidlet over Thanksgiving weekend. * Wife went shopping for me last week. * Slept in same bed as wife on vacation - cuddling - no sex. * Started to talk about possibility of reconciliation, but that is a ways off.
We still may get divorced, but I never thought I would make this type of progress.
Here is what you need to do....
1. Let her anger subside. Give her a lot of space. 2. Let her initiate all contact. 3. Have patience - this is really hard. 4. NO physical contact 5. Go dark and see if she reaches out to you. 6. Write down a series of baby steps that you would like to take. This will show progress.