The spandex short does not, in any way, inhibit its occupants range of motion. Volleyball is a sport often played while flying through the air or very low to the ground and these motions require flexible clothing. Try doing 50 lunges in your traditional shorts and see where your shorts wind up, especially if you have larger thighs like many female back row players do. The material moves and bunches in traditional shorts, but it moves MUCH less in the short spandex shorts. The same goes with repetitive jumping.
Men and women are complimentary with their own respective roles. Men are responsible for leading in the context of romance and passion. Your woman will mirror you. If you lead ineffectively, your relationship will be ineffective.