douglas,

Don't think there's an underlying pathology with you. She might just be generating high amounts of pheromones or using a pheromone spray. Since I'm an amateur psychopharmacologist, I look at the biological reasons for something occurring. She could also be hypomanic and hypersexual or on the worst side, have some serious emotional/psychiatric problem and intense sex is part of its repertoire. Borderline Personality Disorder comes to mind, since my wife, when we first met, couldn't get enough sex. She also has BPD and sex died out years ago.