I know the changes seem momentous to you, but they are still very new. Your H is going to need time to believe the changes are real, and then he'll have to decide if that's enough for him to recommit.
In the meantime, one of the critical things to work on is learning to soothe your own emotions, so that you don't get desperate to talk to him.
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16
