Its hard to find the silver lining here, but you can't give up hope just yet. It is doubtful that any such contact from him will cease....IMHO you still are a part of his life and will continue to be so.
No one deserves this. Not me, not you, not anyone on this board. We don't deserve this much pain, but the fact is, we have it to deal with for whatever reasons. This thing he is going through isn't about YOU, it is about him. His own problems, insecurities, etc. YOU cannot change him, but you can change yourself. Don't let this bring you down so far that you cannot see any light. It is a step in the wrong direction, but it is not insurmountable. He has said that there is a part of him that wants this to work....and you know what...there probably is. Filing papers does not change feelings....
"Achieve success, but without vanity; Achieve success, but without aggression; Achieve success, but without gain; Achieve success, but without force." Lao Tzu