I always smile and nod when I hear something like that, thinking that whoever's saying it likely doesn't mean it. Even if they do, why would I want to be "treasured?" I roll my eyes a little, hoping it's not too obvious, and carry on with whatever I was doing.
But I'm starting to think I might want to be treasured. One day it might happen, and I'm getting less and less inclined to push it away if it ever does.