Hi Mama~
I, like you, am the wife and my husband is the bladder cancer fighter. My husband is very quiet and getting information regarding how he feels physically or emotionally is as painful as sticking needles in my eyeballs. We have been at this bladder cancer thing for about 6 years now so I have learned his "moods" and can sense when he is down. This is new to you (and him!) and I am sure both of your minds are constantly in "questions questions questions, what ifs, what's next, OMG is this really happening?!?!" stage. Does he enjoy using the computer at all? If so here are some great guys on this site he might feel comfortable chatting with or asking questions.
I just make sure I am available and try not to get frustrated when my husband is in quiet mode. If your husband remains in his current "funk" it's worth mentioning it to his doctor. In the meantime try planning small things or outings that are not too much for him to handle. For example we went to this little diner mid afternoon yesterday (nothing fancy and/or complicated) and had a light bite to eat and it is moments like that when you have face to face time that is important and it got him out and about for just enough time without exhausting him. We have a small business and tomorrow we are going to take a ride to one of the retail locations that sells our items. We'll be trapped in the car together so it will be another oppurtunity to chit chat with each other. Nothing too strenuous or tiring. Just enough "us" time without the distraction of the TV, telephone, or computer.
Good luck and as a team you can handle this with no problems!
Pam