So don't look at them again until Thursday or Friday -- could that be done? Just capture the keystrokes?
Women love to TALK, and not just cybersex. She may carry on a convo that will tip her legal hand, and/or expose any other potential threats or opportunities. If you don't think you can wait, you certainly do have plenty of ammunition already with which to confront and expose (but even then, I'd recommend waiting 48 hours to both cool off, emotionally, and also to formulate a thorough plan).