I refuse to believe that all seven billion people in this world are feeling the same sort of desire for love and companionship as I am. I want to believe that my desire for a gf is a reflection of my personality, my life experiences, and my beliefs and values; and that everyone longs after affection for their own personal reasons. Still, there are very convincing reasons to think that this is all due to genetics and that all of this emotional rollercoaster can simply be translated to a message &quot;I want to grab a woman from the rival cave, bend her over a mammoth corpse, and make little Grug with her&quot; that was passed down from generation to generation. 