1784467038iWillNeverBeSpecial2

Edit: Cat Tax is on Indus. All related cats are black. Willow is so hidden in dont have pics of her

Ok, let me know if this is too much information but we are dealing with a situation right now and I need help on

So a few years ago I got Cat Distribution System with a black cat – Binx. She was pregnant at the time and gave birth to 3 kittens. My mom took one (Storm), my friend took one (Remy), and I kept one (Indus).

Now last year me and my sister bought a house and brought our cats in. My friend moved in as a roommate and brought her cats: Remy and another cat named Willow.

Remy tends to bat Binx and Indus, or they run/chase with zoomies, but he does his own thing around them and they are all cool just being in the same room.

Willow, she is very nervous. She only likes my friend. If any other human even like looks or walks past her, she'll dart back into my friend's room. I work remote at my house, but I never really see her leave my friend's room. She just hangs on the bed or leaves to eat food. With the other cats, Binx would hiss at her but usually grumbles and runs away. Indus is a problem. He would run towards Willow and get her to hiss, he never attacks or bats or hurts her. He's stupidly friendly but also Very Large and just wants to be nearby and close all the time. Willow downt like it and hides from him.

Well recently about 2 months ago I started seeing Willow peeing on my lamb rug and then a whole ass thing where a cat peed and pooped on my bed!!! It sucked. My friend took Willow to the vet and she had a UTI. They gave her medicine to take which should help, but we keep finding pee and dried poop in the last week. On the couch/blankets, on the rug, peed on my sister's bed after I started shutting the door.to my room.

We all think its Willow. My friend doesnt want to admit it because theres no concrete evidence yet. We bought pet cameras, more cans, a new litter.box for my friends room, and she's taking Willow to the vet tomorrow to double.check everything. The idea is that because she is nervous around Indus she isnt really leaving the room enough to go to the litter box downstairs and so got the UTI. Sounds reasonable but idk what to do. Its mostly Indus, does anyone have any recommendations on how to get Indus to chill around Willow?