Not Sure How To Take This

Last night during Isaac's snuggle time:
"Mom, I hope that you don't die before I do because I don't want to deal with the going-craziness of not having a mom.  I'd rather you deal with the going-craziness of not having me.  Unless we both die at the same time.  You from age, me from illness, that's the only way that could happen."

Sometimes even I can't find the words to respond.