I guess this is just me, but if you want sex every day and she wants it once a week or whatever, did you ever discuss a compromise, say 2x or 3x a week? Maybe that's crazy of me to say, but you say you are best friends all the time so it doesn't seem so hard to work out a compromise.
Karen,
You would think. But if you spent some time on the SSM message board (or any other "clashing libidos" type forum, you'd see that this is rarely the case. The LD (lower-desire) partner always controls the sexual relationship, because if -- as you say -- the HD (higher-desire) partner wants sex 5x/week, and the LD partner wants 1x/week, you're going to have it 1x/week, I guaran-damn-tee you. It's why I left that forum, because it's all VERY discouraging, and sad, and I've never ONCE seen a successful outcome unless you have BOTH partners admitting that there is a problem and willing to work at it -- HARD -- and even then, the success stories are rare.
HDs don't want "mercy sex," and the 2nd or 3rd time per week that such a compromise would suggest inevitably ends up feeling like that to the HD spouse.