She would have been tortured, raped, or poisoned if it's a real life (or maybe if we readers are the author). She(Rose) said that it's Ripley's grave, she wanted to bring her down to hell with her, that she's reaaally hate her because she took her man, but then only locked her in an old barn for two days(or maybe more). She even throw(okay, pushed) her from a ship to an open sea before. The torture is just to leave her with no food(yeah, that sucks too if I were Ripley, but come on, Rose HATE her).