Sorry you are here. Unfortunately, things will not be better by January. So don't do the 180's to try and prevent a S. Do them to make yourself a better person. Do them only for you. Do not ML with her. She needs to see that she has lost you by choosing this path. She needs to see that you will NOT be friends if this comes to D (unless of course you are ok with that). Do not try and go to MC right now. You should go to IC. She has to end the A and hit rock bottom before she can come back to the MR. Anything you do to make it easier on her will only prolong the agony. Detach, 180, GAL and GO DARK.
Me: 48 y/o W: 47 y/o Together: > 20 yrs BD: Dec '15, then S 2nd BD: Mar '16, then I filed for D April '16: started piecing