A man cannot tell whether a woman is in love with him or his security blanket until she is financially and psychologically independent enough to leave. Until a woman has learned how to leave, even she cannot be sure she has learned to love.
Gravity pulls our bodily fluids down, like water in a glass goes to the bottom part of a glass. In space, the water doesn't stay in the bottom of the glass. It distributes itself evenly over time throughout the entire volume of the glass.