Do you want him back? If so, I would keep some semblance of a friendship with you X. But, as I'm just beginning to understand, the X wants friendship on their own time and convenience. My feeling is that you should be friendly, accept some invitations to do things together, and accept what they have to give, but in the meantime make sure you are moving on with your own life, make your own plans, be happy as a divorcee, and fit him in only at your convenience. When he appreciates that you're not just waiting around to be his "fallback plan", you will be better able to dictate the flow of the friendship.
At least one of us on here, Hope, started out as friends and is at least living together again with her XH. Then there are other scenarios in which the X spouse indicates they want to be friends but their actions don't follow those words. You'll have to play it by ear how much of a friendship you want, but you still need to seek out life beyond your XH as though it is truly over in more than just name.
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt
