Being TOGETHER feels so good...but him leaving again and again feels SO bad.
I get it.
My H has so many people convinced that he was miserable because of me...sad. I think most of his friends are very encouraging of him doing what he needs to do to be happy. Thing is, when all of the flash is gone, he doesn't seem so happy...
Back to you, there is a book called "Crazy Time" and it is about separation and divorce. Not recommending the book, just making a point. This is just craziness.
Have you considered counseling? I think your H can't give you definitive answers. I don't think he knows. But, maybe counseling would help.