I initiate 100% of the time. People that desire sex, initiate sex. SO when a women does not initiate sex with her man, she is sending a VERY clear signal that she does not desire him, and therefore she does not love him. This may not be what she intends, but this is the way most men actually see it. I could not possible love some woman and NOT desire them sexually. So since she does not desire me, I will always see this as not loving me. So initiating is the most important way to show that you DESIRE your spouse.
