Hence a defective adjustment of men and women, felt in all sorts of subtle as well as grosser ways, most felt when they are husband and wife, and sometimes becoming acute.
It is necessary to make clear that, as is here assumed at the outset, "man" and "husband" are not quite the same thing, even when they refer to the same person.

No doubt that is also true of "woman" and "wife." A woman in her quality as woman may be a different kind of person from what she is in her function as wife.

But in the case of a man the distinction is more marked.

One may know a man well in the world as a man and not know him at all in his home as a husband; not necessarily that he is unfavourably revealed in the latter capacity.

It is simply that he is different.
The explanation is not really far to seek.