Because people often do strange things when they feel they're at the point of nothing left to lose.
Word to the wise (and my roommate, although I doubt she'll take it).
She's gonna be wishing that she had the roommate of last semester back if she keeps pushing like this...and I fully intend to embarrass her in front of her friends. That's it.
Because in the global politics of our apartment, she's just backed North Korea in a corner.