Universe Expansion Theory: If the Universe Is Expanding, What Is It Expanding Into?

If the Universe is expanding, then what is it expanding into? Expansion is Self desired, Self conceived and Self perceived differentiation for the purpose of Self Companionship. It is not good for One to be alone. One's very own purpose Companionship, Friendship, Love. It is this the meaning of Life. It is this the purpose of Self. The purpose of Self not to be by itself. The purpose of Self otherwise known as the meaning of Life is Companionship, Friendship, Love.~ Wald Wassermann, Physicist