In Shaunti Feldhahn’s book For Women Only, the author asked 400 Christian men, ages 21 to 75, in a national survey what they wished their wives knew, but couldn't tell them. They could have said anything, and did—more understanding, respect, sex, and taking care of herself. But even when a man could have finally had the ultimate say, the number one thing he wished his wife knew was this: how much he loved her.