Part of me would have definitely listened. Deep down I wanted something to give me hope. I may have responded negatively but I would have listened. So, in other words, I may have shown anger, but I would have been glad, in the end, to have the information.
It's your job to help her see that there IS hope. She can't see it. You can.
You have to look at your situation and know when the timing is good. You have to give the information without anger or a "guilt trip" even if she gets angry at you.