For men, sex is a primal urge.  Do you think that all those adolescent boys telling young girls that they love them really love them?  Do you think that changes when a man is in his 20s or 30s?  Don't get me wrong, I love having sex with my wife and part of that is because I love her,  But having sex with her is not a matter of showing my love for her; it's me acting on my sexual drive.  Wanna know when sex and love for a man go together?  When he accepts without argument that his wife is not in the mood.