Let me ask you this, does she like massages, I mean really deep good ones, why don't you strike up something by giving her a really good one twice a week, maybe she will return the favor. By the way does sex have to be intercourse for you, I was always fine with her servicing me (if you know what I mean), it gave me the release and I still felt closeness to her. Maybe a little mutual massages could be in order with both of you working on your "pressure points".

Burt