My husband thinks she'll be in a different mindset once she starts laying... I don't know man. I'm sorry you're going through it as well. Integrating pullets sounds like a handful.
I have a pullet named Mushroom. Mushroom is different than the other chickens. Her favorite pastime is destruction, like a bull in a china shop.
I put out a dish of freshly chopped vegetables. The other chickens will happily enjoy the feast, until Mushroom arrives and rakes her feet across...