What's the difference between a friend and a girlfriend/boyfriend? I never really understood how any of it works. Is it how you behave around them? Is it just the title? If it's the sexual input isn't the term "friends with benefits" completly retarded? I'm assuming it's similar to giving someone the title best friend, only on a more intimate level. I'm guessing the rules of a relationship need to be there or the line between friend and lover isn't even there. Everyone's take?