toi-- you have a very specific problem in your marriage. It seems to me one of the most hopeful cases I've seen described here. Your wife wants you, and wants the marriage to work. Your wife is being very reasonable. The only barrier to it is you. Man, get yourself checked out, deal w/ your physical and psychological issues, and get your marriage back!
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final