So cute, one year I had a whole passel of bantams that would help me garden and would come running like yours do every time I came outside, they would fight over the worms and like to help dig holes, sometimes they were not so helpful. Such fun.
I spend hours watching them interact, I have a huge interest in behavior, chickens are quite complex and more intelligent than some give them credit for. Glad to hear you are enjoying them.
When they first start laying they get a bit goofy behaviorally, I'm sure they are all feeling hormonal and maternal and were like rooting for her.
A bottom pecking order hen will often stick close to the rooster because he offers protection from the other hens and she can get the best tidbits...