Jo you are not totally crackers. Your H has realized that you have detached and have had enough. You have him thinking because he realized you are ready to go with your life without him. True detachement usually is what turns things around.
Consider leaving the door open a crack and letting him know that you love him but are going on with your life and if he truly wants you back he has got make changes and show you he is willing to work hard at it.
In the meantime keep doing what you are doing. When and if he contacts you be pleasant and supportive of any efforts he is making to work on his problems. You might even let him know that it may take some time before you will be able to trust that he means what he says. Good Luck
