In my case my wife does not have a "solution" that I know of - except for me to leave her alone and not to provide any opportunity for her to feel any further guilt. I don't think that she can get past her feelings of inadequacy concerning her lack of sex drive and until this occurs, she is in no position to consider my needs. I was hoping that we could come to an arrangement where, out of her love and respect for me, she would occasionally (and only on her own volition) provide some physical sexual touch (almost anything would do at anytime). I know if I suggest this course of action as a solution that she would be offended, so I was hoping that one day we could have a nonemotional discussion and this would surface as a viable alternative - but given the lack of success so far this solution is only a distant fantasy.
With respect to having a non emotional sexual relationship with someone else (preferably a woman who has a nonsexual husband) - I don't think this is viable on a long-term basis. How are you going to keep the emotion out of this relationship in the long-run when the other woman is meeting some of your very important needs - how will you then see your wife - how could you want to stay married to your wife? I know that in some cultures, mistresses are quiet prevelent and quietly accepted in the wealthier circles but I know I can barely afford my wife!