I am surprised that when scientists discuss all the benefits of breast-feeding, they neglect its most negative consequence. If breast-feeding gets in the way of the marriage—if it means that a husband and wife never go out on dates, or that the mother is so tired from always waking up with the baby that she has no energy to ever be intimate with her husband—the child will probably end up worse off, however many colds or bouts with diarrhea he now avoids.
This would happen whether you breastfeed or bottlefeed, you would be up for longer if you also had to prepare a bottle.

In the end, there are two effects of breast-feeding that we often refuse to acknowledge. One is the de-eroticization of a woman's body, as her husband witnesses one of the most attractive parts of her body serving a utilitarian rather than romantic purpose. This is not to say that breast-feeding isn't sexy. Indeed, the maternal dimension is a central part of womanliness. But public breast-feeding is profoundly de-eroticizing, and I believe that wives should cover up, even when they nurse their babies in their husband's presence.
Is he serious? A number of my friends have talked about their partners helping them in the early days to get the right attachment, and how couples can be brought together thinking how cool it is that a woman can make stuff to feed their baby, and how proud they both can be.