Thanks Rez, Stephen, Vanilla and Lateralus for your comments.
We have talked about it several times and have tried various things and likely will talk and try more things in the future. In the end, I guess she just has less of a sex drive than I do and I guess I've come to the conclusion that I just have to live with that. The sex we do have, I am happy with. I just wish it happened more often. She more than makes up for it in other ways, though. And I am capable of having a tug now and then. Since I got laid yesterday, my current outlook is more positive than when I wrote that post
