I see your point but I wonder if the allegedly LD man who is mb is doing it as much or more than the HD man? Some studies suggest that people having regular sex are more likely to mb than people having little sex. I just think that some LD people mb as an avoidant activity. So, it is the reasons for mb vs sex with spouse or it is the ratio of mb/sex that is at issue. It is not congruent with their "low drive" to be mb but I'll bet if you ask my H he would not describe himself as LD. So, just what is out of whack his self description, his behavior or my perceptions?
I DO think that you have identified one of the reasons why we HDW's really feel like freaks. I think few of us actually have H's who have medically based LD. We believe the drive is there. We KNOW he chooses to do something else with it - some us know what that something else is, some of us are just guessing. It is crazy making.