You're being vindictive, Tiptoe, and that is very,
very unhealthy for you.
What you should be doing is moving forward and trying to improve yourself as a person. By improving yourself (physically, mentally, what-have-you) you improve your confidence, which in turn helps you move on. The affair will always hurt you, I don't doubt it, but the stronger you become as a person, the better you will be able to cope with it.
As you are now, you are brooding and angry - you haven't moved past the affair and separation at all. You're hurting yourself by obsessing over your ex and his lover, when you should be focusing on you, and you alone.
I'm sure you've seen the
180 list, which makes its way onto virtually every topic here. There's a reason it's so prevalent - it is designed to help you move forward.
Your attitude should not be, "I want to see them fall," but rather, "who the hell cares?"
Here. Watch this, and listen to its sage words.
True Indifference
Whenever you find yourself thinking about your ex or his lover, snap yourself out of it and REPEAT those words. I
mean it. Focus on you - you shouldn't care about your ex, or pine or obsess.
Are you a loser, Tiptoe? I'd like to think not. So stop acting like one. You're letting him beat you, without him even realizing it.