<human>: Can you condense the text into three sentences or less?

Hey r/relationships

I dont know quite how to go about this situation. My roommate, who I've lived with for 2 months so far and will be living with until May, seemed to be a nice enough girl, but is turning into a hellish reality quickly. I live with three girls total, and the other two also agree that her habits are getting old fast.

To start, she is constantly fighting her long term boyfriend. They say they've been dating since high school, which I find quite sad because I've never seen them have a civil conversation. Everything, literally everything, he says is wrong to her and she always yells at him in a passive aggressive typical bitch manner. She doesn't behave this way with anyone else, or so I've seen.

I realize this isn't so much my problem as it is theirs, but its quite unpleasant to try to study while they slam doors at eachother, or hide out for an hour for them to leave so you can make and eat dinner in peace. And worse yet, her room shares a wall with one of my roommates who gets crippling migraines which are only worsened by their yelling at each other in the next room. This is also not my problem, but my other roommate is too meek and non confrontational to ever say anything to her.

All of this, plus her normal bad roommate habits, like leaving god knows what everywhere when ever she tries to cook, leaving dishes everywhere, not cleaning up after her self, and generally being an inconsiderate person.

So. I mean. How can I try to bring a little peace to my living situation? We're all locked in to this apartment, we signed a lease and there are no open apartments or houses for rent for 20 minutes in any direction. We would all like to see my one roommate break up with her boyfriend mostly, but that's impractical.

I guess I'm hoping for some advice on trying to help manage her and her personal life when she tries to make it part of our lives as well.
<bot>: Roommate in inconsiderate and making the whole household uncomfortable with her and her boyfriends quarrels, how can I survive the year?