In general I don't think the analogy between sexual and emotional support is a perfect one. While there is an element of truth to the comparison, the focus on it masks the more important fact, which is that if you are in a relationship which you feel routinely reluctant to give yourself to your husband or boyfriend sexually, the solution is much more complicated - and much more effective - than both of you simply enduring perpetual misery for the other's sake (hint: it has a lot to do with you both coming to terms with yourselves).
This post allowed the reader to wander too far along a path of reasoning that led to the conclusion that real happiness in relationships is a sum-zero game. In fact, this is only true in troubled relationships. If you both reach a point of self-satisfaction in your personal lives and live vulnerably, the opposite is true.
The original text of the post (annotated) is here: The Analogy Between Sexual and Emotional Support
1. Never Say No To Sex
2. The Analogy Between Confidence and Beauty
3. We Have a Shared Responsibility