You don't need closure. The closure will put you in harm's way, but will never get you what you need. You're not dealing with a person that has a personality disorder and will not function as you. When you seek closure you are searching for reason and explanations that this person cannot give you, but you are putting yourself in a place to be pulled into another cycle of abuse.
You know how hard it was to leave, don't put yourself in that position again. What you need is to understand what you have been through and how it has affected you. You can go to thebreakwayjournal.com and see if the journal is a good fit to start your healing journey.
The Break Away Journal can be found here
For Coaching, click here