My Mom did not know she was terminal. She did not WANT to know. So she avoided asking "those" questions. I'm sure in her heart she knew but she wanted so much to live.
Although the days and weeks were long - it did give us some closure. Many people who Mom loved but hadn't seen for a while came to the hospital to visit with her and it meant the world. Better to pay your respects while someone is living than after.
My Mom chose to be in the hospital (we would have preferred she be at home), but once again - it was her choice so we went along with that. And when the time came - I think she had come to terms with it and anticipated her reunion with her parents and brothers. She was at peace.
I pray for God to give you the strength to get through this the best way possible. I also pray that your ex will step up to the plate and make things easier for you. Sometimes the worst situations bring out the best in all of us.
B.M. - I did not know that you had cancer. Your diet sounds good. I need to work on mine but I do start each day with oatmeal and berries. I know there is something positive going on. Hugs to you!