Hi Sally,
I was in a similar situation many years ago, but I feel you are on the right track. You are doing what you need to do to survive and be independent of him. He may be back, but you have the knowledge of his actions, and if things start to deteriate again, you will know what to do. In order for me to keep my sanity and bring up my 2 children, I had to leave and we remained best friends. Just pray for the strength to do whatever you have to do. I wish you all the luck.