Hope~ sorry you are down and sending you a huge hug. Now obviously I have not been in your situation, but I am thinking that his discomfort is a good thing. It means that he has some thinking to do.
No doubt someone with some words of wisdom will drop in soon, but I know you are hurting. He still wants a connection with you. The facts are he keeps calling. Why did he call you tonight? If it was really over, he wouldn't bother, so please take some heart from that.