I forgot to mention that at least in my situation I have found that doing nothing was exactly what I needed to do. It was the best, though hardest approach. I would add that "doing nothing" is not appropriate ALL THE TIME
Best wishes
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together