Edited to correct stupid typos.
I have seriously considered going after the main OW legally, not for misappropriated money, but for adultery. In my state, adultery is actually a crime (class 4 misdemeanor). It's hard to prove and basically get a slap on the wrist, but it's the principle
of the thing! And yes, her spouse can also press charges against my STBX. That's kind of a bonus for me.
However, I've decided that it is more attention than she deserves from me.
Double Betrayal D-Day 7/26/2013
Two steps forward and one step backwards, is still progress.