[The Cloud]

I'm by no means an expert in this area, but have you offered to, uh, "service" her "free of charge"? That may impart on her that it's not sex that you want so much as it is intimacy with her (that seems to be at least half your issue, is not feeling desired yourself). At least this way you can find out if it's just her sex drive that is low, or if it's more about her perception of how you go about sex. She may not realize that you equate sex with closeness. If you let her know that you feel as if she is pushing you away emotionally, and that it's not so much the lack of sex as it is the rejection that bothers you, then she may be more able to understand. Perhaps she will be more able to relate to you if you make it an intimacy issue rather than a sex issue.