" It has been said that a person's religion is best defined not by what he says what he believes but by what he actually does.Equally, it could be said that one's friends are simply those people with whom one spends one's life.Period.Anything else is a form of rationalization.

Perhaps the criterion of 'People with whom one spends one's life is better reframed as people on whom one spends one's emotional energies. "

― Andrew Sullivan , Love Undetectable: Notes on Friendship, Sex, and Survival