I think one should never underestimate how difficult it can be for partners to get where one is, after a cancer diagnosis. They are also afraid - for many reasons - and very often feel absolutely helpless, not knowing or understanding what they can do to help or support.
I think we have a responsibility to initiate discussions and express our needs. If I had not asked my partner, and handed over a DVD with instructions on it, I would not have received the most blissful foot massages. Book a couple session with a counsellor or psychologist, get resources from the Cancer Council. But don't assume anyone knows what to do for you......ask them and communicate.
And in the end remember, that for most of us, this is a lonely road only we can tread upon. But we can choose how we do it.