I'm introducing my chins together now, and I'm confused as to whether it's working. Some of the time they'll groom each other and look all lovey dovey. They've done this on several occasions...but 30 min later they're fighting and pulling fur! These two different reactions happen at random times & places, not just in neutral territory or a carrying cage, so I've never left them together unsupervised because I just cannot predict their reactions. Can anyone explain their behavior?