[Dakota]

...since I don't call FED, and this is interesting...

Here's what I think:

Question 1: Assuming the runner made no attempt toward 2B, and since she did not enter the dugout, she may return to 1B without liability to be put out.

Question 2: Once the runner stops on her way back to the dugout, assuming F1 has kept control of the ball in the circle, she must then return immediately to 1B, or be called out on a look-back violation.