Here is an excellent excerpt from the chapter on Eros as Lewis pursues a Biblical view of headship in marriage.
"Christian writers (notably Milton) have sometimes spoken of the husband's headship with a complacency to make the blood run cold. We must go back to our Bibles. The husband is the head of the wife just in so far as he is to her what Christ is to the Church. He is to love her as Christ loved the Church - read on - and give his life for her (Eph 5:25). This headship, then, is most fully embodied not in the husband we should all wish to be but in him whose marriage is most like a crucifixion; who wife receives most and gives least, is most unworthy of him, is - in her own mere nature - least lovable. For the Church has no beauty but what the Bridegroom giver her; he does not find, but makes her, lovely. The chrism of this terrible coronation is to be seen not in the joys of any man's marriage but in its sorrows, in the sickness and sufferings of a good wife or the faults of a bad one, in his unwearying (never paraded) care or his inexhaustible forgiveness: forgiveness, not acquiescence. As Christ sees in the flawed, proud, fanatical or lukewarm Church on earth that Bride who will one day be without spot or wrinkle, and labours to produce the latter, so the husband whose headship is Christ-like (and he is allowed no other sort) never despairs." (Pg. 148)It is so easy to understand the feminist movement when husbands (even Christian husbands) live with a warped view of headship apart from Christ.