Roommate does not scoop and clean her cat litter for MONTHS

Yes you read it right. My roommate does not clean or even scoop her cat litter for MONTHS. We had a washer room with doors and when we first moved in the condo, I agree to let her put her cat litter in there. I did not know she never clean the cat litter after living here for 2.5 months.

The day we moved in, the cat litter was already full of poop, I should have seen that a red flag. Now its almost 3 months we moved in here and I have never seen her even scoop because there is poop on the scoop handle and its still on it. There's sand everywhere the cat goes.

Now there's a poop mountain in the litter and the smell is so bad I cant even use the washer and dryer. I asked her to clean it the other day and she SCREAMED to my face that i can do it too. Mind you its her own cat and I never have a pet in my life.

Should I just ask her to move the cat litter to her room?? or just place it in front of her room?? I honestly feel bad for the cat. She never feeds it properly as well.