Well it depends on what kind of relationship you have. If you have a physical relationship then obviously you are going to depend on sex. Physical relationships are simple and you would only be in it to satisfy one need. But if you are looking for a more intimate and emotional relationship than you shouldn’t rely on sex at all. Sex should be a way of showing your feelings for the person but communication, respect, and support should also show these feelings as well. Intimate relationships are more complex and satisfy physical along with emotional needs.