One man's opinion. Your husband is living to please himself and no one else including the woman that he has left you for. I doubt that the death of his mother is really all that important to him. At this point in life he is not behaving in the manner that a normal healthy man would. Therefore stop thinking about him and start thinking about yourself! I know how hard it is because I am also still struggling to let go of that rope. This is your chance to do some hard work but you have to "Take back control of your life" this includes getting control of the things that rule your thoughts (your husband).
I feel like giving you some tough love Rouky so I hope that you know that I still love you. However it is quite evident that he is still ruling your emotions and it keeps you from growing. Don't be mad at me for saying this but you can't do anything about his maniacal behavior as I can do nothing about the behavior of my wife. They have lost their minds and we are the good people so lets start taking care of ourselves.
Please let today be the day that you get back to DB. It has really saved me and it will save you. Again I love you and want the best for you and this is working for me and a lot of us here. Get back to the strong Rouky that I know that you are!
M:53 W:47 M:15 years. S:18 S's: 30 & 28 from previous marriage. BD: 3/14 Divorced January 17.