>>But she will never, ever sleep on the ground unless it is an emergency.<<
For me, (and I'm young) I can't imagine getting into a serious relationship with someone who didn't like backpacking. It's more than just shared interests, it's also about my worldview. Backpacking (ultralight) represents a lot of things that are core to my personality, like doing more with less, questioning the status quo, rejecting the rat race, etc. etc. I think Jason Klass has a good insight behind his Ultralightenment theory; the things that make us ultralighters are more than just style choices, they're personality traits.
YMM of course V, these are just the words of a passionate young idealist.