I have 2 cats. The girl is 3 and the boy is 4. They are very chill cats. The boy is very affectionate with me, but stays away from many others especially my and my wife’s 16 month old boy. The girl loves people and likes to play more, but isn’t a huge player. I don’t know if all of that was necessary info, but just trying to explain the situation. Also just over a month ago my in-laws moved in and will be here for awhile so the house is frequently changing. I don’t know if any of that plays a role though. Not long after we adopted the girl the boy did not like her, but after awhile they really loved each other. Lately though the boy has been too rough with her. He’s not rough all the time. My guess is she goes up to him to play then he gets too rough. Could the changes in the house causing thing and how do I stop it? Thank you.