How do people do this?

My husband has a brain tumor. Some days are good. Some days are bad. Some days are a living hell. Today started out fine, got a little bad, then turned... It is so frustrating living with someone when you don't know whether he will ever be the way he used to be. It's like living in limbo, which is, I think, the worst way to live. Just get better or just move on. Harsh, yes, but at least I'd have something concrete to deal with instead of something so abstract. I'm no philosopher. I need to know. now. soon. help.me.out.