I would caution you to consider how wide of a circle to expose to, and what your motives would be. You sound very vengeful today, and rightfully so. But as pro-exposure as I am, the PURPOSE of exposure it to try and save a marriage, and to give the OM/OW's spouse the opportunity to know the truth, and to make their own decisions for their family. Neither seems to apply here.
Certainly time to think about that stuff before you do it, as you've got a good gameplan for talking to L first.
I'm so sorry; I know this feels like a truck hit you square in the chest. But like you said, at least you finally know the truth, and know you're not crazy.
