I have 3 cats that I got the newest one I got was kitty also but the thing is my cats didn't like that kitten it would just get like punched by them this is very common for cats to get jealous over new creatures you just have to trust process there gonna know each other more you just have to wait hope this helps nubby nubbz3 😅
Have 2 boys and found 1 baby 1 month ago she was a girl. My two cats constantly pissed and annoyed. Feel you. 3 boys the same as 2 boys and 1 girl trust ne. Edit : Both of my boys look the same my profile picture is Mr.S. He is my homeboy. Found the third while at work, alone (only 2-3 weeks old) with a broken arm. Now she runs already
Bro if the cat was a girl it would've been worse between your two previous cats because it's a girl they'll actually injure eachother to get the right to mate even if they get neutered
We have 2 boys and 1 girl already, so we thought that getting another girl would help them so there's 2 boys and 2 girls. But yeah I can see how getting a girl could make it even worse honestly haha