Studies have also shown that women need to feel sexy in their own skin (I might have included that in the article, I can't remember), but it often has less to do with her attraction for her partner, and more about how she feels about herself. So these men who leave their wives to deal with everything around the house, feeling stressed, covered in spit up and boogies, are never going to have a willing participant. Not to mention she's probably irritated with him and feeling completely disconnected. Then they complain, "Why won't my wife have sex with me?"