Okay so I want to preface this by saying I have never met someone so unreasonable as this one. She doesn't know how to organize or clean and the moment we ask her nicely to do something she flips out, throws a fit, and yells at us for all this stuff that really is ridiculous. She always wants the last word and literally only ever talks to us about boys--which, well, none of us nerd girl really bother to talk about boys because we are surrounded by testosterone in engineering classes and we really don't need more. It takes us more time to reload the dishwasher after she kind of tosses them in amazingly inefficiently and if she every puts things away it's a scavenger hunt to find them. She buys all this food and then leaves it to rot in the fridge until it's really nasty and then when she cooks once in a blue moon she lands half of it in the stove which she never cleans. And there is plenty more but I won't bother getting into that.

She's my roommate who has been giving the rest of us (it's 3 vs 1) a tough time. Now, I finally finished analyzing her confrontational style after the third argument we had as a group and was able to successfully counter part of it in the middle. She has this terrible tendency of taking everything ridiculously personally and then starts yelling about how unfairly we've treated her (pfft yeah right) and so even though we start the conversation on the offensive and being very polite about it, the rest of it is spend scrambling around on the defensive. Now, I've already resolved the issue (had that annoying talk today) and was able to keep her calm the entire time by constantly reminding her I wasn't her enemy but even then she goading me and just trying to provoke me into a full blown shouting match. But I called her out on her behavior every time (exhausting) and so it ended up alright--and I got to walk away feeling like I had won for a change.

But I'm frightened that she'll have another fit since we still have half the semester in school to go and since it's midterm season up till finals and she's particularly temperamental (like a 5 year old jeez). The other time we had an argument she left passive aggressive notes all over the common area. How has she even survived this long without having had to deal with confrontation in an adult manner? She's also at least 3 years older than we are. I just. Why???

Everyone of my roommates is exhausted and doesn't want to deal with her and I'm on my last leg. Does anyone have any advice?