She's beginning to see you as a food-sharer, nurturer and is probably beginning to trust you more. Developing a little nurturing of her own, I see! Tibbe barks at the wind, too! He gets really mad at it! All I have to say is "It's windy outside" and he's at the window going off on it, watching the tree limbs moving all around. He doesn't like that one bit, thinks they should stay still.
I'm glad you got on the floor! I almost always recommend it as a powerful tool to those dealing with unsure/shy dogs. Even a cur dog, with a history of being badly abused and hiding in a corner eventually come out of their shell with a lot of floor time spent with the dog, avoiding eye contact and even turning your back to them. It can make them feel a lot more empowered in the budding relationship and removes fear in time. I believe you're making strides with her. Good update