You are walking a very delicate path and need to just stay on your toes. You seem to have developed a very strange friendship bond with your Xh, and he seems to be content with that. If you are as well, then happy sailing, but you have to be sure and let the things he does in his life on the side, not be an issue. If your not than your putting yourself in the constant mix of being privy to his life, and that can be a life long of pain for you. It's a touch choice, but you can't continue to dangle indecisive.
I wish you all the best, your such a strong women. You can do this, whatever you decide.and, be comfortable with your decision. You only have to answer to yourself.
I'm doing great. I have finished my first semester and am off soon for my visit per our last conversation. I will keep you informed.
My best, DM
The past can't be ahead of you in the future. You don't have to figure it all out, just pick a direction. What's next...I don't know but I can't wait!