And do you think the answer to this question, on average, be different for men and women in longterm relationships? I've struggled with this in many relationships because I often find that attraction wanes even when my love for the person grows deeper. It's very frustrating because I can't tell whether this is just "par for the course" in longterm relationships, a function of gender (I'm a man), or evidence that this "isn't the right person." But what is strange to me is that the love itself often gets stronger but the raw desire weakens.