Hi Maddie,
I can't imagine how awful it must be for you really young people to have to deal with this. I strugled at 50, thinking that was too young.
While I am definitely on the road to recovery(also from bowel cancer), I thought only this morning of the "best" times that I spent with my husband while on treatment. As I wasn't working, we had all of his days off to spend together when I wasn't at the hospital. (He works shift, so we had days during the week without kids).
The ones I remember are the short "airings" as I called them. short drives with maybe a simple picnic or even just a cuppa from a thermos. Fresh air, quiet talk and some peace were what I really needed.
I'm not sure what your situation is but maybe these quiet times could be good for you both.
The future is a tough one to contemplate for you both but at the moment mayb each day is what you need to consider.
Take lots of care of each other. Is there someone you can talk to? If not maybe try the cancer helpline.
S