being needed

I'm watching the DVD of Bewitched right now (don't ask... I have a pirate connection) and studying my lines for Just So (which previews tonight... eek!). It's really interesting. In both of these, a man tells a woman that he needs her and all of her anger and questioning just melt away. Is it really true that all we want is to be needed? When someone says "I can't live without you?", shouldn't that be the ideal we all strive for? I've never had that kind of relationship. We all think that we can't live without someone, but we can. But when elderly couples die within a few days, weeks or months of each other is just beautiful. They really did need each other and couldn't live alone. Beautiful.