I have a 3 year old maine coon siberian mix male cat and he has always been the biggest baby, showed constant affection and love towards us but now that we have a new 3 month old kitten, he isn't as affectionate to us anymore. He does like the kitten, he plays with her and chases her, he doesn't attack or hiss at her at all but he does growl and hiss at us, he isn't as bad as he was a week ago, but he has these moments where he doesn't wanna be touched at all or anything. He used to be happy in the mornings and wake us up, now he doesn't do that, it's been a week since we brought the kitten home and I know it takes time but will he go back to being his normal self? He is eating and drinking fine and using the litter too, just his behaviour towards us changed a bit, I'm just hoping it's not permanent. What can I do?