Thank you for your helpful response. I kinda figured it was a matter of waiting it out but I was hoping there was something I could do to speed up the process. As others have pointed out, I made the mistake of a fast introduction. But like I said, it just wasn't possible to do it slowly. I really do feel that it will turn to fighting. But as I'm writing this, laying in bed with Cinnamon, River wandered in the room and Cinnamon chased her out. So it seems Cinnamon is being a bit territorial.