My wife and I have a ten year old Siamese?Himylain mix. She is a great and affectionate cat. We have been considering the purchase of a 12 week old male all Siamese kitten. We are concerned however, that our current cat will translate bringing in a new kitten as being replaced, and lose her affection for us, or even, God forbid, lose her will to be healthy. Are we being silly or is this a real concern?