Relationships are like chemical reactions. Just as hydrogen and oxygen need one another to become the H2O of water, so we need at least one other person to show who we are and to become who we were made to be.
Doesn’t our own life, and the whole story of the Bible say that we cannot find significance, happiness, or the truth of our God, by ourselves?
Don’t we need at least one other person to show our potential for both good and evil?
And the Spirit of God moved upon the face of the waters… (Gen 1:2)