Actually, embracing that R is unlikely and getting on board with the inevitable D is one of the great DBing motivators. In my own situation, one of the best things I did was consult with an attorney. I didn't tell her, I didn't broadcast it, I just got a free consultation for myself. It was eye-opening and destroyed all of the pie-in-the-sky quickie divorce stories she was feeding me. When there are minor kids involved there is no such thing as a quickie D in most jurisdictions.
But once you are resigned to the D, GAL, 180s and emotional detachment become easier to work towards and maintain. But as AS said, do not let it cause you to jump the gun.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018