I think you can chalk your H's deceptive behavior regarding the Viagra up to the male tendency to not want to seek out help. Sort of the equivalent of a guy who realizes he is lost and really needs to look at a map but still doesn't want to look at the map in front of his woman so sneaks a peek in the men's room instead. It's like he didn't really have to look at the map if nobody know that he actually did. Self-deception more than anything.
"Tell me, what is it you plan to do with your one wild and precious life?" - Mary Oliver
