I think you need to disappear from his life, Cinders.
It is only then that he will feel a void.
Make that void happen.
That is what is in your control.
Nothing else has worked.
Me: 46 H:44 Together: 25 years Married: 20 years Separated: 11-30-06 Divorced 12-21-07 OW: EA began 2005 PA began end of 2006 3 children,20, 16, 6 ex asked for forgiveness 01/16/11