[Kipper is King]

Just the fact you are carefully considering how to act around him/make him feel better is a testament to what a great friend you are. You deserve a big thumbs up for sticking with your friend during this most difficult time. There are weak people out there who would abandon someone in that state because they couldn't handle the stress of the situtation.

If CP allowed for Thanks x1000000, you'd deserve them!

I agree with WilsonFourTwo's advice about investigating fulfilling a wish for him. Such wishes aren't necessarily extravagant or expensive, but sometimes simple things can mean a great deal to someone.

I sincerely hope your friend can live as long as possible in comfort and with as much happiness as he can gain. Having caring friends will certainly help.