In my case when she finally understood that the flow of help & money from me was over she simply up & vanished. We didn't have a fight or even any bad words about it - just poof gone. June 2019 will be a year since she vanished.
June of 2017 is when I detached from her. We had a few interactions & longer periods of not talking at all for a year. The contacts which did take place were all bad - all major problems going on with her.
When you finally stop enabling he may vanish too.