My thoughts and prayers are with you and your uncle. To help your aunt, remember that you have to be the best you can be under the circumstances. When my father was ill, I found it was nice to think about the many many great times we'd had together. It often did make me cry, but still I felt blessed that those memories would be there, regardless of his recovery. If you can visit with her, sharing those memories with your aunt might really help her too and give her the positive energy to fight her way toward getting better.

Best wishes - try to sleep!
jmv