It may come as a surprise to you but some dogs aren't interested in being the center of attention. Reactive dogs like Teddy need their space. When she's ready, she'll seek you out.
For a dog lover, it can be hard on your feelings when you're turned down by a pretty dog, but since spending time with Teddy here, when she decides you're okay by her, and you are allowed to give her a scratch or two on the butt -- it felt like winning a prize! Being allowed to give Teddy some affectionate attention was a wonderful sensation the first time, and many years later, the excitement hasn't diminished.
Have you ever had a reactive dog offer you their affection, or the chance to make physical contact with them? How did it feel?