The loss of desire seems to have happened independently of his other relationships. It's just now there's another partner, I realize the energy is there--but it's not for me, and I'm in a lot of pain. I don't know how to fix it, because it's not like I can say, "We have to have passionate sex at least three times per visit." That's not the kind of thing you can *make* happen if the person isn't feeling it. I don't know if he's one of those people who is turned on by novelty? I know that sex with my super-long term partner tapered off a bit over the years, but it never fell off a cliff and until recent life changes, the ebb and flow was fairly mutual. Thank you for your response.