Dug-In...ok I get it now. You would want him to prove via polygraph that he didn't sleep with OW2, not just talk to her inappropriately. You have suspicions that he was physically involved with her during your separation and he denies it, so you would want him to prove it to you. Gotcha.
Wellll....that's a tough one but the bottom line is, if he is innocent he will happily take the test! He may grumble and be offended, but he would comply to prove his innocence! Now whether that is the right answer or not, I have no idea. All I know is that, even given my indiscretions, if my ex-h accused me of an indiscretion that wasn't true, I would happily prove it to him in whatever way he needed me to.
