Interestingly men often don't need the amount of support women need and enjoy. We often love talking to our friends about our problems whereas often men often are quite happy not doing the same.
Reading about his family disowning him, it occurs to me this might be a good thing and help remove pressure from him. From your description they sound like they might have had a practice of putting a lot of pressure on him. I mean, what sane supportive family disowns someone whose wife has been diagnosed with cancer?
In the course of a year my husband had two weekends away going to the footie with our son. The trip away and the footie did him some good.
Good luck with all the treatment. Karen