Him being a man makes a difference because at 50 a man has a lot bigger pool of potentially interested partners than a woman of the same age. At 25 it was the other way around.
I understand and completely agree with all your arguments for an open marriage. Except one little problem: she knew that there was no sex, she must have known that it was a problem for him. I mean, why wouldn't it be a problem? She got sick, not him. And yet she did not offer him a way out, it was his idea to which she could not really afford to say no.
An interesting discussion here. I hope that she felt secure enough to let him go do his thing. It also seems that she did not offer or need physical sexual attention. If he is taking care of chores around the house, she might be quite content to not have him bother her for sexual needs.
I can't see that older men have more options than older women. There certainly are plenty of men on Lit complaining about the lack of sex though I suspect a lot of that is relational issues and not sexual issues. I am no expert but I think most any woman who wants sex can find a man. Maybe not Prince Charming each time but still can find available men. For older men, I think interested women are much harder to find.
