Also glad to hear you are moving on and have detached wonderfully. It is insane that he keeps emailing you. I guess that little affair didn't sound so good for him when it came out in the open... not much to be proud of, yeah? LOL.
The anger you feel is normal. Once againa, your life turned into something unexpected, that you did not plan for, but life is forever throwing us curveballs and you have been doing great throughout this entire thing.
Glad to hear your mom is doing better, as well as bro-in-law.