Itsy, I'm surprised that he would be so agreeable about the life insurance. Wonders never cease. I'm very happy to see that the conversation went well. Now your thoughts can settle down and refocus on you and your life.
Remember....they don't see themselves as part of the mix of their family. Some people will look in the mirror and never see their faults.
Your friend could be right about closing the door, but I wouldn't lock it completely. You have children together and there will come a time when you both will need to be present at functions, etc. It's okay to be friendly, but I wouldn't be in the mind of calling him all of the time. I think you know what's best for you in the long run on this one.
Itsy, you've grown so much since I spoke to you so long ago. Keep up the good work! The world is your oyster.
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.