Throwaway account because she lives on reddit.
She stopped bathing soon after she moved in but yet she continued to buy bottle after bottle of expensive shampoo, conditioner and soap that she never used (and started to short change us on rent because of it and her alcohol habit) and her hoard of toiletries that she never used took over the bathroom to the point that me and my bf had nowhere to put the single bottle of shampoo/conditioner and bar of soap we shared. She never cleaned the shower, no matter how much anyone got on her case. Most of the time it fell on my shoulders and it took three times as long as it ought to because most of my time was spent removing her things from the shower so that I could clean underneath. She pitched a fit when I suggested throwing away the bottles that had mildewed and turned rancid and started hoarding some of the bottles in her room, which leaked on the floor, damaging it. Her reason for not bathing was that it was not fair that it was requisite for others to find her attractive. Others should see her the way she sees herself. I tried pointing out that maybe she should try smelling herself the way others smell her because it was pretty bad and that says a lot coming from a dirty hippy.
On top of not bathing, she did not wash her clothing. Her room smelled so horrible that it ended up stinking the rest of the flat up and could be smelled from outdoors. I used to hate coming home because of the assault on my senses. We had a washer in the house but no dryer so she refused to do it because hanging her clothes up to dry was too much effort. She repeatedly called me a Stepford wife for doing laundry and never washed hers. I was so fed up with the smell that I offered her to throw some clothes in the wash when I did laundry and she eventually took me up on the offer (just so I wouldn't have to smell it any more). Her clothes were crusty and they stuck to mine (and stained them too) after going through the wash (even being washed in hot water, extra soap and with a presoak). My clothes smelled so horrible after going through the wash with hers that I had to pretreat them with boiling water and vinegar before rewashing them with a really strong soap to get the smell out (it was trial and error to figure out how to get the stink from her clothes off mine).
She would not plunge the toilet when she clogged it because she found it undignified to do. So she would leave it to soak to soften up, thus stinking up the entire building (not just the flat). And no matter how much anyone got on her case, she did this every time she clogged it. And then she realized she would clog it less frequently if she stopped flushing the paper along with it. For the longest time we couldn't figure out why the bathroom smelled so horrible until I lifted the lid to see what horrors were heaped inside and caked on the inner portion of the lid. I went away for several days and she started throwing her paper on the floor and she never picked it up when she was confronted about it.
She smoked inside even though it broke the lease and I have really bad asthma and smoke triggers asthma attacks. She would throw a tantrum every time she was confronted about it. She would sneak smoking when she was home alone and threaten me when I confronted her when it was just her and I. And she would light up as we were just about to leave and running late and try to trap me and my boyfriend into a guilt trip about how hard her life was at the moment to make us even later.
She would grope, force herself and try to make out with anyone within arm's reach when she got drunk and would not take "no" for an answer. She lost friends this way, she broke up house parties this way. I had to use force to get away from her when she did this. I didn't have a functioning lock on my bedroom door and was afraid to fall asleep when it was just her and I in the flat. She would follow up me pulling myself away by screaming and crying about how no one loved her and threatened all sorts of self harm for saying no. This was the point that home stopped feeling like home and that I seriously considered being homeless over living with her any longer.
She would spend many evenings trying to argue with me over how I was a lazy, worthless piece of white trash and how I failed at being an adult when compared to her. She would wait until I was exhausted to start in. She argued with my boyfriend that I was a dumb, lazy, worthless piece of white trash and that I was holding him back in life. And that I was catty, mean and two-faced for not liking her.
Every time she broke something she tried to blame it on me. She crashed her car even though I wasn't in or around it, tried to convince everyone it was my fault. She caught the kitchen on fire even though I wasn't home, tried to convince everyone it was my fault. Got in trouble at work, tried to convince everyone that it was my fault because she was ruminating over how I wasn't a good friend. Had a falling out with a prospective romantic partner, it's my fault because I was shaming her by being in happy relationship.
When she got kicked out for not paying rent, she left her pets behind, and so much garbage that the city's collection service couldn't pick it all up and it took a few weeks to take care of it all.
I will never have a roommate ever again.