I agree...there is no need for a response back to him. He's clueless and whatever you were to say to him would go in one ear and out of the other. Allow him to stew in his own juices for a while...
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
