Dating advice from Newton's gravitational law? That's rich. The formula G*m1*m2*r^-2 is literally the equation for gravitational attraction between two bodies. So technically, yes, there IS a simple formula for attraction—just not the kind that helps at parties. Unless you're at a physics conference, in which case, carry on you magnificent nerd. The inverse square relationship suggests the closer you get, the stronger the pull—which might explain why scientists keep bumping into equipment but not into dates.