What do you think these other people will do for your marriage? Will she stay married to you if her boss tells her to? Or her best friend? Don't you think her best friend already knows she's having an affair? I think you are taking an enormous risk of driving her away for good with very little potential upside. Did you read Fracesc's thread? He didn't bust her affair, he blew up his marriage. Maybe that was what was meant to be. He says he is happy with the result. But it's not what he said he wanted when it started.