In general, men are driven by intellect and women by affections, and because of this men in the Bible generally represent knowledge and truth and women generally represent love and the desire for good. This generally carries over into marriage, where the man's growing knowledge and understanding and the woman's desire to be good and useful are a powerful combination. In many cases in the Bible, then, "husband" refers to things of truth and understanding, much as "man" does.
Magnificent things can happen in a true marriage, though, when both partners are looking to the Lord. If a husband opens his heart to his wife, it's as though she can implant her loves inside him, transforming his intellectual urges into a love of growing wise. She in turn can grow in her love of that blooming wisdom, and use it for joy in their married life and in their caring for children and others in their life.
Many couples, even in heaven, stay in that state – called "Spiritual" – growing deeper and deeper to eternity. There is the potential, though, for the couple to be transformed: through the nurturing love of his wife the husband can pass from a love of growing wise to an actual love of wisdom itself, and the wife can be transformed from the love of her husband's wisdom into the wisdom of that love – the actual expression of the love of the Lord they have built together. In that state – called "Celestial" – the husband represents love and the desire for good, and the wife represents truth and knowledge.
Unfortunately it's hard to tell, when reading the Bible, which meaning of "husband" a particular passage has. For that we have to look to the Writings or to context for guidance.
139. Internal Meaning of Ezekiel, Chapter 16
The successive states of the Jewish church. (2)
1-2 There was nothing in it but falsity and evil. (2)
3-6 It was forsaken by the Lord from the beginning, because it was without anything of the church. (2)
7-12 After a time truths and goods of every kind and species were given to it through the Word, and thus evils and falsities were removed. (2)
13-14 Thus it could have been in intelligence. (2)
15-20 It falsified all things of the Word. (2)
21-22 It extinguished truths and goods, and became as in the beginning. (2)
23-25 It turned truths into falsities (2)
26-28 by knowledges [scientifica] of the natural man, by traditions, and by reasonings from them, (2)
29-30 finally profaning [truths]. (2)
31 It exalted itself above all men. (2)
32-34 It obtruded its falsities on others. (2)
35-42 They will utterly perish by the falsities by which the truths of the Word have been destroyed. (3)
43-45 Thus they will be as in the beginning. (3)
46-52 The like has come to pass with the Israelitish church, but in a less degree. (3, 17)
53-55 Nevertheless the church in general shall be restored. (11)
56-58 It is everywhere better than in the Jewish church. (11)
59-63 A new church is to be instituted among others. (11)