HI Karen,
Please do not believe what you read on internet, I know lots of people that where giving 6 months to live and they are still here after 5 or so years...
If tumour did not penetrate walls of colon, that is a good thing, but I still think he should have had chemo, I have never ever heard of any one not having chemo after surgery.
You really need to ask the Drs straight questions,
Why no chemo? Did they get all tumour? why is Cea still going up? ( what is his cea count?) Did they check his liver and lungs with the Pet Scan? as that is where it normally gets to with colon cancer...
If not happy get second opinion, do not be put off and wait be very very proactive ...
Always be positive,,, expect the best but prepare for the worse,,, I know lots of people who have stage 1V cancer and still here fighting away after many years ...
God Bless .........................Rob