I have been married for 16 years, and have seen my wife as a HD and as a LD. I can tell you that as a HD person, she was VERY different, both inside and outside the bedroom. It is not just about sex. It's about the way you FEEL. She was a sexy and sexual person for the first 4 years that I knew her, then we start having kids and it completely changed her as a person. This is described well in SSM. It is hard to describe, but a person that FEELS sexual acts VERY different from one that does not feel sexual. For example: Years ago, she might cope a feel, she might whisper something in my ear, she might make out, she wanted to see me naked, she was SEXUAL. Now, nothing. She does not have a sexual bone in her body. She never flirts, she never has her mind on anything affectionate or sexual any way. She bascially is NO FUN. Heck, now she seems to be embarrased by sexuality, not like the days when it was fun and exciting. I think this is described in SSM, that when spouses lose their sexuality, they just take all the air out of the relationship. See the Cemar's list on this website. I can't seem to find it myself.