Word of advice: don't document an affair over email. It's bound to get back to you, as this cheater has now come to learn in the worst way. Her husband began suspecting her of cheating and decided to install spyware that would screenshot every few seconds. I guess jealousy can take people to desperate measures. When he went through his wife's emails, he discovered half a year's worth of documentation between her and his best friend proving that they were having an affair. Well, instead of confr…