Don't know if this is what you are talking about, but this is #4 on some Myths About Sex list posted on the "Schnarch on Dateline July 14" thread, page 2:
Myth 4. The low desire partner is hung up about sex. This is one of the greatest surprises for couples. There is a low desire partner (and a high desire partner) in every relationship, whether you have sexual problems or not. “Low desire” and “high desire” are relative positions in a relationship, rather than something measured against a numerical preferred frequency. In many cases, the low desire partner is actually more erotically inclined and/or more sexually experienced than the high desire partner. The low desire partner knows the sex they’re having isn’t worth wanting, that’s why they’re not interested. **It’s the high desire partner’s desire for additional servings of **lousy sex** that needs to be questioned.**
