Hi Dana,
None of this is your fault, its just the position you find yourself at this moment in time. I will bet there are not too many people out there that would swap places with you.People under stress sometimes say things they do not mean to people they love. They wish things were how they used to be without the cancer not how things are now.All of us that have been touched by cancer wish this.
What you are going through now is a work in progress, so keep strong
Think of good things, favourite things, meditation, yoga, and positive thinking are all good, so is gentle reflexology, these things will make you stronger and more able to handle what you are going through at the moment, I know it is difficult but try not to think negative thoughts. Dont try to take on too much when you are tired from the radiation therapy, read books that interest you and try to rest when you get tired. Good luck with the chemo and stay positive.
wombat4