That being said, I have found the feeling happiness and contentment impossible to obtain without mutual human companionship. That being said, the amount of human companionship needed is probably heavily variable between humans; I'm sure some people are happier with less. I find it difficult to imagine a well adjusted (non serial killer) person who is perfectly happy with none. If your personal needs for companionship have always been met, I understand why you'd be confused as to why people seek it out so much.