Sorry I didn't come back to this earlier, I don't have regular access to a computer or cellphone, so I couldn't reply until now. Thank you so much to everyone who commented here, I really appreciate all the advice and help. I know the cause of the attacking now; it was most likely because Pookie...
A couple of hours ago I had to stop my cat Bug from attacking my other cat, Pookie. (Weird names, I know, but it feels weird to not refer to them by name so I'm not going to.) Though we split up fights pretty often, they aren't ever violent attacks, just typical play aggression. No claws or...