I remember Sunny. He's a real cutie pie. :-) I would say if he's not fixed yet, that is definitely a place to start. You had mentioned that the Persian isn't very affectionate, so I'm trying to relate it to our household. Tubby is the lovebug in our family and the instant I'm on the couch, he's there ready for some petting or his nightly bump session. Peanut on the other hand, is more stand offish. She will come up, but only on her terms....and when Tubby's not around. Sometimes it seems like Tubby wants to snuggle with Peanut, but she wants nothing to do with it. "Whap!" Out comes the paw, and then the fur starts to fly.
She swats him, and he doesn't like it so the chase is on. Maybe something like this is happening in your house. Tubby and Peanut have been together for 13 years now, so this still happens, just not quite as often as it used to. Sometimes I don't know if they're really mad at each other or just playing, but sometimes it's obvious that someone is not a happy camper. So it might just be a matter of time before Sunny learns that the Persian doesn't want to play/snuggle and he'll start leaving her alone more. It might be that he's claiming the dominant position and she's just not giving in too easily, and I would say, again, it's just a matter of time before things settle down. As for the litter box, do you just have one box between the two cats? You might want to try getting another one if that is the case. I don't know how you can control who goes in what box, but if you can, that would be ideal.
It's another long story that you can see here but there might just be something medically wrong with the Persian that Sunny is picking up on like Tubby was with Peanut. Turns out Peanut just didn't like the constant sniffing, so she would swat him and.......
Then again, maybe Sunny just needs another kitten for a playmate.
Tubby
Spring 1986 - Dec. 11, 2004
RIP Big Boy
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Peanut
Fall 1988 - Jan. 24, 2007
RIP Snotty Girl
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Robin
Fall 1997 - Oct. 6, 2012
RIP Sweet Monkeyhead Girl
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