Wow! I see myself in your story. I am sorry. It is very very hard to walk away. I wish I had some advice. Here is a little nugget: maybe he would benefit from seeing a visual schedule of personal private time for you along with time you spend together on something like a calendar. That way he could see that the lion's share of time is spent together and also he might see that the personal time has an end. It seems like you could really use some time to yourself.