OMG! Thanks for answering so detail.
See if I get you wrongly or not. You totally give up on him and just feel there is something incomplete. You want to give it up but there is something like an unfinished business still makes you want to talk with him right?
I think I know what it is. Look at the following and be true to yourself if I am right. (because I'm the same)
You want him to thank you the love you gave and the things you have done for you but he didn't. You want him to praise you for being so lovely(maybe), caring, understanding and supportive.
OR...
You want him to tell you that he is the fault of this relationship that cause you leaving him and he is responsible for that.
Worst case....
You want him to beg you and come back. Haha...
Consider you fall into these categories.
What you want him to say is not spoke. That's why you feel incomplete or feel hanging there. It's normal!
Share with you my story. I always want my ex to come back and tell me she screwed our relationship and allow her to come back with me.
After months....
It didn't happen. So, I need to tell myself that she didn't tell or do what I want her to do and I'm free to move on to new relationships.
It's funny as a human being and also fun to live as a human being. If you still think of him, admit it. I am still thinking of her now too. But I can move on which is a good thing. hahaha...