Because he has told you what his intentions are, i.e., to continue working on a divorce. You may not have realized it, but your expectations may have been a little bit on the high side after he was willing to attend the meetings. Just my opinion.
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.