When I lived in Michigan, my roommates had 3 cats that had established their territory and... bullied Cailet quite a bit. I suspect that this is why she won't stand up to the new cat, but... since I'm not a cat, I really have no way of knowing.
If anyone has some useful advice, or knows a good veterinarian that I can write to or get advice from, it would be greatly appreciated. I don't want to have to constantly fight Cailet's battles for her, and getting rid of either cat isn't an option. I know that things will settle down eventually from experience, but I know she wasn't happy in Michigan, and I'd like to spare her that experience if I can.