I would have recommended it way before you got to this stage where you are almost divorced. At this point you are probably better off trying to just let it all go and move on? If you are almost divorced you probably don't have much leverage anyway, but it depends upon your circumstances.
How did you find out about the EA in the first place? Did you use surveillance?
I used surveillance pretty aggressively and easily figured out what my W was doing to a point (EA clearly proven) and confronted her on it multiple times. My mistake was probably revealing how I was getting the info. A lot of the experts here will tell you to confront, but not reveal your sources of intel, and I now agree with that or at least that is what you should attempt to do.
In my case, without actually telling her how I knew she would continue to try to lie/deny (amazing it seems).
ME/XW:47 S21, D19, S15, S14 M:21 T:26 W moved 6/10 I filed 7/10 D final 4/12 remarried 8/12 W wants to R 12/10 and 4/11 but I decline