Because atheists treat women like garbage!

To the atheist, a woman is nothing more than an object to be used for pleasure.

To the Christian and the Jew, a woman is a precious, irreplaceable, important person.

The atheist only cares about women if they look "pretty" and will hop from one woman to the next without warning if he sees a "prettier" woman.

Christians, Jews, and pretty much all other theists love their spouses for who they are, not for how they look or how good they are in bed. They believe in treating women right and are strongly against adultery. (Not every theist is true the there spouse, but most theists are because, unlike atheists, theists have standards.)

Why a woman in her right mind want to be an atheist is beyond me.