This is very difficult to understand. And the worst part is you probably feel like you have no control here because that is what he has - is control. That is probably where your anxiety is. You don't understand his behavior and you don't want the possibility that really is over. Be willing to compromise but don't be so willing that you stay in limbo indefinately. There's comes a time when you have to cut your losses, but give it your best so you know you did everything you could.