Thanks to everyone who wrote. It did help.
I'm still dealing with the sale of the house and other property, so I still have to talk to him sometimes. When I don't have to deal with him, I can usually put him out of my mind and concentrate on other things. Once I've reached the point where we have no reason to communicate, I think it will be easier. Having to deal with him always gets me in knots.
I have good days where I feel positive and focus on how much I love my family and certain plans I have for the future. I have some specific ideas of what to do to make things better, but I have to put a lot of it off right now for medical reasons.
Anyway, sometimes I just need to vent and let it out, but most of the time, I'm okay.
MakingMyFuture, you are entirely correct. Because of my exhole's inability to form genuine attachments, he is almost certain to wind up miserable and alone at the end. I wouldn't be surprised to find out that he already is in a way. I was the only person he had in his life that he could really count on, and he threw me away for a piece of trash who was probably only after his money. Now he has no one he can truly count on to care about him.
I don't want to be him, and the chances of his mistress making him happy are ludicrously low. I'm virtually certain she only went after him for his money, and although I'm hardly rich, he doesn't have as much as he used to either. Once she realizes that, she probably won't stick around long. It may take her a while though. She's pretty dumb.
Oh, and the Karma Bus may have already hit him. I don't want to post what happened because if he found it, he might recognize himself. I was very civilized and sent him a polite text about it expressing my sympathy. Let him remember that I was the only one he had to lean on now that he's facing this new trial.
Miss me yet, you stupid cheat? Because I sure don't miss you.