I am really sorry to hear your W is going through this. My W was in the hospital for most of this past September. She had to have a foot of her small / large intestine removed and had complication. I made a point of bring at least one of our children by everyday. She asked me why I bothered. I told her that when I was in the hospital and I never saw the kids or barely her that I felt alone in the world. I also felt that the kids needed to see how family members supported each other in tough times. I also cried and prayed a lot for her.
I don't think you will ever be able to turn off your feelings for her. Showing that you care and are concerned in front of your children will go a long ways. Set the best example you can for them regardless of what the W does. You will be comfortable with yourself for doing the right thing.
Twisting on Life's Rope Me53 W53 M20 D21 D19 D16 BD 2-2013 D final 1-2015 _________________________ "Dream about tomorrow, Live for today, Learn from yesterday"