I understand what you are saying...but for many people if the emotional connection isn't there for whatever reason, the sex falls aside....and many of us can't just have "sex" for sex's sake we need that emotional connection as well in order to even want to go there with our partners.
If for some reason your W isn't wanting to have sex with you...there are deeper issues that do need to be addressed first. If she were to simply have sex just to fulfill your sexual needs...that can cause resentment and make your problems even worse. Now, if you are addressing the other issues as well, you can begin to work on the physical aspects of your R....but really, there is more lacking in your R that needs to be addressed.
