Lexi, what does the mother have to do with anything? I don't understand why you are even dealing with the mother and not your friend. Is your friend your roommate and living with you? Does she pay you any money for that or what? I don't understand the scenario, how she "wanders in" (From where? Where are you and how/when did she "get in"?). How can she have "more later"? How do you get from letting the friend abuse your kindness and walk all over you to her mother having any say whatsoever?