Back on the plate he makes angry sounds and tries to cover his food with his paw. He thinks i'm taking away the food. I don't know what to do. And recently i introduced my cats to him and he wasn't friendly at all, he was so mean. And also recently he started to hate me i guess, i don't know but he-
its okay for him to be defensive or even aggressive on the first introduction. It could take a while, introducing a kitten to a cat could take a while.
http://www.icatcare.org/advice/how-guides/how-introduce-new-kitten-your-resident-cat
this could help
http://www.icatcare.org/advice/how-guides/how-introduce-new-kitten-your-resident-cat
this could help