Itsy, Get rid of the therapist. She's not helping you. Find a divorce support group in your area and go to the meetings. The people who attend these do sit and listen. Do you have a close friend? Time to lean on that friend a bit.
Yes, you do have a lot to get out. I found that by talking to friends, I was able to work through all of the emotions/feelings that I had. Keeping it bottled up inside will only cause it to fester.
I'm sorry that realizing he's still in mlc has brought it all back home to you. However, I do feel that since the divorce has taken place, he will go through the euphoria stage and then the reality of what he's done will begin to hit him.
Itsy, you are a strong woman, you will make it. The holidays aren't helping you at this time either. Make plans and keep busy. It's okay to have down days. No one is suppose to have up days every day. Down days, once we get through them help with getting stronger and provide us w/clarity to our situations.
I hope you are feeling a bit better soon.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.