Old habits are very hard to break. She is under alot of stress. She is on the verge of a heart attack. This all plays with the MIND. She may have thought that she was going to die anyway so she should have her cake and eat it too. Stress is scary it changes people.
My advice is to let her know that she is needed, loved appreciated and that all of you need her to be alive and well. Give her lots and lots of attention. Cards, flowers, phone calls out of the blue. Tell her that you care because with stress , you tend not to care about yourself. You don't have the time or energy--stress eats up everything.
angie