I think this is accurate. My ex is now with someone who he said felt "familiar," which I think is another way of saying that he felt comfortable with her. While we were together, he was sexually demanding and sex played far too important a role in our relationship. I sometimes suggested that he used sex as a crutch, in lieu of expressing his feelings. He claims that sex isn't a big part of the relationship he now has with his second wife, but that they're very compatible. As women in our sex-obsessed culture, we're programmed to think that if we're not desired as a partner, it must be because the sex wasn't good. A man I dated for a while suggested the opposite. That the sex was TOO good, and that's why the marriage lasted so long, despite some serious issues of incompatibility. I guess I'll never know, but many aspects of this article rang true for me.