I believe in Karma, however, at this point it really doesn't matter to me if X gets his. Personally, I hate to see anyone suffer so if karma means X getting a horrible disease and dieing a slow painful death....NO!!! I don't even like the fact that he's suffering financially. Whatever happens to them affects our kids in some way.
And...I've found that when I am able to let go of the anger/resentment I feel towards X, my life is happier. Yes, it crops up occasionally and that's how I know that my life is happier when I let it go. I was angry during most of my M, I'm not going to allow it to affect the rest of my life.
In my case, the karma is that "I" got what "I" deserve.