Men are cunning creatures. A new study in the Journal of Personality and Social Psychology reveals that males tend to say "I love you" before their female partners do. But there's more to these Lord Byrons than meets the ear — in the words of Lauryn Hill, "some guys are only about that thing, that thing, that thing." You see, while men are found to consider saying "I love you" a full six weeks before their female partners, it's usually because they haven't had sex yet. Women, on the hand, tend to say it "if sex has already occurred." (That's one way to word it.)
Some men might realize that professing their love will make a woman more likely to engage in sex with them, so they confess their emotions to illustrate their commitment and “seal the deal.” Meanwhile, women see sex as part of a bigger picture (i.e. a commitment to fidelity and monogamy), and this is why they crave those three little words after the act.
In other words, he offers intimacy because he wants sex, and she offers sex because she wants intimacy. Unfortunately, these differing expectations and needs can muddy the waters between couples.
You don't say. Science!