Just need to vent here

I have this roommate situation I didn't really anticipate. I'm a generally clean person, not perfect, but I do tend to like the living area to be nice. Now there's one roommate in the house that sort of gets on my nerves, mostly because of the whirlwind she tends to leave behind whenever she's in a room. Don't know how it happens but everything is always everywhere, and especially in kitchen. Other roommates tell me she's actually never done her own dishes. So I noticed I was doing many more dishes than my own, many more times than I should and thought I should maybe nicely ask her to do her dishes one time when she had piled them all in both the sinks so that nobody could use the sink. Well, it turns out me asking her to do this made her a bit really mad. She did them, but in a huff. So I made the mistake of asking her if she needed to talk about what was bothering her and that's when things got ugly. She yelled at me and told me I was disrupting her life. Okay...I repeated back to her what she had said, hoping she'd realize what she said was ridiculous. Nope, no luck. So then I explained that everyone tends to do her dishes and clean up after her and that as a 25 year old she should maybe do her own dishes and not have other people do them. That really didn't work. She told me that everyone was fine with everything before I came and that she's sick of me judging her. Well, I was judging her, it's true. She's a total mess, and her boyfriend, I don't think he's really a great guy, either, he won't hold her hand in public, but wants to spend the night. He's a real swell guy. And he likes to be here and be a mess, too. But well, he also yelled at me. That happened after she stormed off after yelling at me that I'm not her mom and I went up to her room and told her once again (but in more overt terms this time) how rude it is to leave messes around for everyone else to pick up and that I wasn't her mom, I was her roommate. Then her boyfriend told me, yelled at me, to "get the freak out of here and leave her alone because she's had a bad day". Apparently that excuses bad behavior. So, he yelled at me in my own home after I asked his girlfriend to do something she should already know she should do and should've felt dumb for not doing. What a guy. So now I'm in this awkward situation with her (oh ya, and she has a friend staying here she did not even tell anyone was coming and she's staying who knows how long).

The logical thing at this point is to talk to the other roommates about the situation. Funny thing is they seem to think it's totally okay for them to clean up after her and deal with her idiot boyfriend and her tantrums. They did say it bothered them but that they just didn't want to do anything about it. So they won't. This is a long rant basically to say my roommates are crazy and I have a funny feeling it's time to move.