This is my first post so not so sure how this works. I found a 3 week old kitten abandoned at the laundry mat so I took her home and named her cruella. Now my problem is I have a 3 year old male named donut who has never been around another cat his whole life, he only knows my boy dog joc. I don't know how to raise kittens my boyfriend raised donut before I ever dated him, but im doing my best and for her age she's very independent she knows to use the litter box, she can eat without a bottle ( she makes a mess but she can do it) so I wasn't very concerned because donut just avoided her and joc took over the parent role. however now donut has taken interest in her, he plays and cleans her, try's to show her how to bury her poop, etc.. he's obsessed with being around her 24/7 he gets really upset when she gets put in the cage. starting yesterday he has been pinning her down by the back of the neck and holding her down like that but I think it hurts her because she starts screaming and it seems like he has her gripped to tight. so I smack my hands together and he knows that means he's in trouble so he'll run but I don't know if that's normal? also I know its a mating thing but wouldn't he know she's to young? I separate them every few hours and at night but I think its getting out of control and im not sure what to do anymore.