Expecting me to listen to her boring conversation without paying the least attention to mine (fyi I do try to listen to her, and people generally think I'm a nicer person to be with)
Expecting me to travel all the way to help carry her luggage without asking me permission nicely first, when I have injured both my arms from overcarrying
Flattening my good pair of expensive shoes (used to prop up the autolock door of my place where I let her stay the night, she didn't use her cheap sneakers instead)
Asking people help for coursework without thanking them
Expecting people to respond to her replies for homework help asap but refusing to help in return
Always asking me if there are "any cute guys" where I happen to be, and what I think of my guy pals
When I post nice pictures of the food I eat on Facebook, always trying to run down my food and promoting whatever she ate that day ("my food is superior to yours, nya nya nya!")
Tagging me in her many rows of self-taken pictures
Her many rows of self-taken pictures (wth are there no pics of landscape? it's all just about her FACE)
Nagging me to comment on her pictures
Trying to fish compliments from guys who are only out to ogle her Facebook pics
Using my apartment as a storage warehouse for 3 months
Expecting me to bring her stuff on the times most convenient for her (which are inconvenient to me), and refusing to come at the times I am free (despite the fact she is free) - you see, I let her store her belongings in my flat.
I realise I'm being oversensitive, but I was brought up to appreciate good manners.