First of all I'm sorry to hear about your mom. Five years ago I was diagnosed with stage 3C
Ovarian cancer. It was the most frightening thing I ever had to face. I was so wrapped up
in my illness and treatment I didn't have time to think how it affected my family.
I'm guessing it's very stressful for the people close to the patient but I think other than trying
to make them comfortable and meeting their needs there is little more you can do.
I know it would be hard but if you could stay as calm as you can around you mother even
with your disorder it might help. You could always fall apart when you're alone.
If you can afford seeing a therapist that deals with illness in families it might be a good idea.
It's interesting that you are thinking of leaving your relationship, in times of a stressful situation
not getting support can be damaging. I met many women in chemo who left their husbands
because of lack of support.
A year ago I left my husband of 32 years of marriage because he didn't make me feel good
about myself anymore. My illness changed me and I wanted more out of life.
I thought being on my own would be difficult but I find it very pleasant, no one expects
much from me and I can make plans to suit my moods.
I have heard that caregivers of sick people can sometimes suffer as much as the patient.
So take care of yourself or you won't be much help to your mom.
Eat well, sleep well, if you can, and think good thoughts.