Could it be that romance novels have the potential to do women what porn does to men? In a great blog post I want to point you toward, Russell Moore makes a great argument for that very possibility.
While I would never presume to suggest that they can do the same damage to a soul or a marriage (porn is just too deadly), they both have the power to dramatically change our expectations of what love, sex, and marriage should be.
Don't take my word for it. Read Moore's post Can Romance Novels Hurt Your Heart?