Is OTHER wrong in the post ? POST : Basically my sister adopted a cat last year when she was living with her boyfriend. They broke up so she had to move back home with myself and my mom and took the cat with her. 
Now she’s planning on moving out and doesn’t want to take the cat with her as it’s hard to find an apartment that will allow cats.
I told her today that I don’t want to look after him and she she was not happy.
She says he loves the area and thrives being able to be able to go outside and it wouldn’t be fair to move him to an apartment. 
I do love animals and I have in the past looked after her animals after she moved out (2 chinchillas 1 of them died while I was looking after them which was a bit traumatizing) but a cat is a lot of responsibility. 
He also peed on my bed a few weeks ago while I was asleep in it and I had to spend almost €200 on new bed clothes and covers. She never apologized for this and never offered to pay anything to help.
I feel guilty if I don’t agree to take care of him because it will be much harder for her to find a new place but also she should of thought of this before she adopted a cat.
So am I an asshole if I don’t want to make things easier for her by looking after the cat? 
