rminer it is up to you. Only you know what you can tolerate and for how long. None of us can tell you that. However, most A have a shelf life. And it tends to be relatively short. So waiting is not a bad option if you can handle it. Then there is also the option of telling her you know, and that you don't care she can do what she wants to do. There is some anti-divorce writers that suggest that once an affair is acknowledged and the LBS says "I am letting go, do whatever you want" that the mystique and elicit of allure of the affair is shattered. Most WWs are excited by the forbidden nature of the affair. Once that nature is gone, they lose interest.
DBing feels like losing most of the time. In reality the feeling like losing is the best chance of winning. Most around here tell you that usually it is the LBS that finally has had enough and initiates D. Only the individual LBS knows when that is.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018