Sounds like my hen that I posted about a while ago. Do you have only hens in your flock, no roosters? I ask because often in a group of chickens without a rooster, on of the females becomes the alpha and takes the place of the rooster as "the boss". If this is the case, then she see you as a challenge to her dominance, and she is trying to get you to submit to her. I was able to break my hen of this behavior by using BYC member Rooster-Red's advice for aggressive roosters. Here is the page, try out those tricks:
She's a RIR and the only one left. The male died a week or so ago and i"m trying to build up again. i started with 5. two got killed by the nabor dog who dugg under the pen. " electric fence took care of that problem". one female I gave to the nabors kids, the male and female were about 17 weeks old at that time" in December". now he dies becouse I let them run the yard and he got over the fence and in the dogs yard again. so she's a loner, I hope that the eggs she layed can be hatched. she's always been mean, so was the male.
RIR from mcmurry farms are mean. I don't recommend them. I'll use my local source this year.
I always heard the Buff orps are nice tempered chickens. But I've never had one . I've got cochins but they are not the greatest layers. I've had some RIR roosters a long time ago that were pretty mean and a couple of leghorn roos that were really mean. You might try craigslist or even on here - Maybe somebody nearby would be willing to part with a roo and some young pullets or hens. Good luck!!
Oh back to your original question- A nice young rooster might keep her too busy to be mean-