It is sad that cheating is a phenomenon very often, especially on the part of the stronger sex. They're so naive, and we, temptress, so crafty! In consequence of this is to prepare a little in advance, so he says to predict the likely treason and act accordingly. And we have you to help! If you haven't "caught": "She was just a friend. - Respect my own space (read: don't get in my phone/laptop). "You'd change? (The usual case - those who deceives the suspect in such deception private partners). "You're wrong/not good enough... (continue full criticism of all your actions). - I can wash my own things. - Should I stay, I have a lot of work. If he already captured: - I still love you and want to be with you. - I didn't mean to make you hurt. "I didn't like was afraid to lose you. Is it for me means nothing. I think you and you realize that it's all manipulation of clean water. The traitor will change constantly as a result, it is better to burn bridges"to save yourself from the pain and sufferings.