Hi CLK,
I think that this would be a good time to go to see a highly trained couples/sex therapist. The problem won't go away on its own. I suspect that there is something in your honey's past that is blocking her at this point. Something went wrong --and it's too scary to be sexually connected to someone with whom she is emotionally connected.
When a relationship is new, sometimes, the hormones and the excitement of the newness override old issues with fear of attachment. But as the relationship becomes more serious, more stable, old learning about relationships being dangerous comes into play.
Take a look at the model of Milestones of Sexual Development on my website SexSmart.com and see if anything clicks for her. Clearly, you two care deeply for one another. But having this kind of one-sided, mercy sex, constantly, for a lifetime, won't work.
For sex therapists, go to
www.aasect.org.
Aline Zoldbrod Ph.D.