Re: Sex and Relationships
I think sex is one of the most important aspects of a relationship. In nearly any other aspect of a relationship, one can go outside of the marriage to seek satisfaction. My wife and I each have friends we can talk to, confide with, and/or engage in activities that our spouses don't care for. I love to listen to live music, she doesn't. She loves to crochet, I don't care for it. I've been known to belly up to a bar for an evening, she doesn't drink. She's can watch "What not to Wear" for 5 hours straight, I can't stand it.
In each instance, we have friends or family that we can enjoy the activity with, without our spouse. Sex is the one aspect of a marriage (unless you're talking about an open relationship, and I don't think anyone is) where we can absolutely not go outside of the relationship. Therefore, sex becomes terribly important. I think all of us can attest to a relationship where an imbalance in desire created tension.
If my wife doesn't want to go bowling tonight, I'll call some friends. If my wife doesn't want to dance between the sheets, then I'm out of luck. And if she doesn't the next day, and the next after that, then suddenly what would otherwise be a terrific relationship becomes clouded with resentment, sadness, etc.