What should I do with my roommate?

First let me say that on the wekends I work 16 hour shifts..8am-12am so sleep is very important to me. I also have a hard time falling asleep, and if I get woken up...thats it for me. ok..my roommate and her friend came home from a party last night at 3am. They were sooo loud. I sent her a txt that pretty much let her know she wole me up and it wasn't cool. She responded that I should get over it. She then said that when I had a friend of mine over we were loud and she didn't care so neither should I. I got wicked mad and went to talk to her. I told her to take responsibility for her actions and just say..sorry..i'll be quiet, not blame me. I explained how she can sleep through anything and noise doesn't bother her..but it does bother me. She flipped out saying she always there for me and this is "what i do in reteturn". This is also the same girl when at one time I heard her gettin it on(heard everything..ewww), I called her out on it and she blamed me for that too!