try Jojoba oil, which is actually a type of wax but is great for sensitive skin. Also regular KY with nothing "extra" added. Or baby oil if you can handle the potential mess-it's rarely an irritant.
A lot of those "for HER enjoyment" lubricants have an irritant in them that is supposed to increase blood flow there, but dang, they burn...
Thanks one of the three that I got was KY-plain old fashioned. Another was KY-silke. Both seemed to get the "thumbs up" from the W.
As to SSMguy, one of the things for my wife was her anger at me. Because of many similarities, I wonder what his W is angry at him about.
My experience is that usually, both partners in a marriage own some share of the problem. That is one partner may be the major cause, but the other will have done some things to enable, or prolong the problem or keep it from being fixed.
I suspect that their may have been things that SSMguy has done that his wife is upset about and that he should ask his wife for forgiveness about.
>43 years of marriage--My wife and I are now closer than we have been in decades. I believe that my SSM is over.