I also wanted to add that it's amazing how many of these guys say and do the exact same things. It's uncanny. Did they attend a secret workshop, like on how to be a complete $#%^&? You'd think they memorized a script somewhere. But that's the part I'm finding comforting right now. Every single thing you said about your ex mine does exactly, the same behaviors and words. They could be clones. And that tells me that it's about his disease and not about ME which is a huge comfort.
I too am lonely and that makes this process much harder than if I had a lot of friends and an extensive support network. I enjoy my alone time but actual loneliness can wear me down and makes me more vulnerable.