Adam Clarke on Genesis 2:18

It is not good that the man should be alone - לבדו lebaddo; only himself. I will make him a help meet for him; עזר כנגדו ezer kenegdo, a help, a counterpart of himself, one formed from him, and a perfect resemblance of his person. If the word be rendered scrupulously literally, it signifies one like, or as himself, standing opposite to or before him. And this implies that the woman was to be a perfect resemblance of the man, possessing neither inferiority nor superiority, but being in all things like and equal to himself. As man was made a social creature, it was not proper that he should be alone; for to be alone, i.e. without a matrimonial companion, was not good. Hence we find that celibacy in general is a thing that is not good, whether it be on the side of the man or of the woman. Men may, in opposition to the declaration of God, call this a state of excellence and a state of perfection; but let them remember that the word of God says the reverse.