Yeah you are right...aparently I have given her a green light to cheat. But it seemed like she broke up with me just by telling me about this guy so she would cheat regardless of what I said. I have no power to check/verify if she really ended the affair or not. So it does not matter at the moment. What matters is that she is still "madly in love" with him, promising him eternal love and devotion thus I feel I must act somehow. Obviously she has zero respect towards me as a husband and a human being. I will have a talk with her during upcoming 2 weeks so I am planning to tell her either she stops the affair ASAP or she needs to move out immediately since I am not gonna tolerate her behaviour any longer. If she refuses, then I file for divorce. I do prefer she files for it but If she will be hesitant, I can do that. But I am also considering the other approach described by DnJ that is to give her space and let time to do the job. However I would like to know if somebody following the second approach ever reached the goal (W came back afer limerence wears off).