But when fear alone exists, the same cannot be said. For a man who loves his wife, even if she is not entirely obedient, will still bear patiently with her. True harmony is nearly impossible where people are not united by that love which rests on proper order and authority. Fear alone cannot achieve this. Therefore, he emphasizes love as the stronger bond.
And though it may seem that the wife is at a disadvantage being told to fear or respect, she is actually the gainer because the greater duty, that of love, is laid upon the husband. So God spends the time talking to husbands, and husbands are told to love because we're the leaders. And it's our choice whether love is what drives and motivates our family, or whether it's fear and respect out of that.