Extremely hostile to most of her attractive friend’s friends and especially all of her boyfriends. Will interfere constantly with the view to splitting them up by any means necessary.
Will constantly “Feed” her victim until she’s approaching the same weight category and level of unattractiveness.
Jim: "Wan't my fault, Dave. It was her fat friend sticking her oar in."
Jason: Good luck, man. Her fat friend always pulls her outta here before you can do anything.