[sophacles]

Or perhaps simply expressing anger is something he doesn't like to do near his family. It could be a rage issue, but more likely it would have interferred in smaller ways with his ability to be properly supportive. Perhaps he would have suggested a confrontational route (get lawyers involved e.g.) that would have made his wife uncomfortable. Perhaps done something like suggest ways to "fix" the problem, rather than just be there as a supportive spouse. Many people would be uncomfortable with those reactions in themselves, and therefore would not want to expose their family to it.

Amusingly, your statement "the brainwashing gets us all" was most appropriately applied to your own presumption that he would fit some male role when being uncomfortable with proximity and anger.