A veteran of two long-term relationships, I quite agree. The sexual intensity of early days does fade. But that doesn’t mean the relationship has to lose value. The blooming of real, strong love offers its own rewards. Not to say that we can’t and shouldn’t work hard to have happy, healthy, satisfying sex lives. I think we just need to understand if we want to judge good sex by the intense infatuation stages of pairing, we might be setting ourselves up for disappointment.