Cinderella and Prada

I am not sure Cinderella and Prada may or may not have an issue. Cinderella is turning into a bully. She is trying to get Prada off the hay and the feed. She is not trying to mess with Tinkerbelle, so that is good. I thought Prada was going to be the problem, but it is Cinderella. I am not sure when she went from being scared of everything to bully. I am not really sure what to do about that. I may end up moving Prada if she is pregnant and moving Bill back over to where he was, but we will see what happens. I am separating feed and hay so there are multiple places for them to eat so Cinderella cannot be in multiple places at once.