Well sex is a need firstly, less physical but more psychological. Sex can decrease stress and anxiety which will save you from an early heart attack . So dont die directy like when you dont eat food but indirectly, I dont agree with you about the comparison to chocolate. As eating chocolate makes you happy, not eating it doesn't make you a stressful and impatient person. Finally I dont like people who use sex as need to cheat partner and at the same time your partner should understand you sexual frequency. If she can not cope up with your frequency or how many times you need it, she or he should find a place of compromise. If you need more and she or he cant give it, just say that this is not working for me, and move on. Sex is an important ingredient in a relationship if not the most. If there is no sex then what is the difference between a relationship between you and your partner and you and your best friend. I was watching an interview about an actress and she said her hubby should be happy that he gets once in a week. I was like what the fuck. Most of us cant say our partners that we need more sex because then the drama starts like I am only meat to you, you don't love me etc, etc.