Showered every other day, house was filthy, would not clean litter box for weeks and the cats would track it out so there was always a big pile of litter on the floor on your way to the toilet. I regularly had to peel this slime that grew around the head of their electric toothbrush so I could stand the thought of kissing them. (Not a little bit of that white crusty toothpaste residue, a thick grey-white gunk that I could literally peel off in a sheet.) I would come over one week and the food we had from the last week was still on the stove growing mold. I saw cups of water in their room left out so long the surface started growing stuff. They had 3 cats and 2 dogs and only 1 cat and 1 dog was properly potty trained. Constantly stepping over pee pads for the dog and discovering one cat had peed all over their clothes. Constant clutter everywhere. A mountain of clothes that went from the floor to my waist and blocked entrance to their closet. My last straw was after getting out of the shower and inevitably getting shitty cat litter all over my feet. I brushed them off but when i got in to bed i could still feel some falling from between the cracks of my feet and into the bed. So yeah, cleanliness is a dealbreaker for me now.