Is OTHER wrong in the post ? POST : AITA? This past July I renewed my lease for my college apartment and opted for random roommates to fill the 3 empty rooms. 

Our apartment had really good energy for the first two months. Then I noticed that I was running out of peanut butter faster than usual. I work and shop at a wholesale grocer and I get paid very well for a college student. 
Periodically I will go to the store and buy large quantities of snacks to last me a month or so. At the time I had about four jars of peanut butter and that quickly disappeared. I learned that one of my roommates was eating four slices of toast covered in peanut butter every morning both of which were mine. This particular roommate was very rude and told me that he didn’t give a fuck about my peanut butter or bread straight to my face and told me to grow some balls and worry about something else. 
The problem here is that I work 30+ hours a week for my money to pay my rent and buy groceries and my other three roommates get their rent paid by their parents or are using loans to do so. They all somehow can afford to eat out every night and yet choose to eat my food. After having a little house meeting I bought a shelf to store food and since we don’t have a pantry and everyone had an assigned shelf. My shelf was always loaded with bulk item foods and quick meals that I can make in between class or work until today. 

Today in particular it was a turning point. Another one of my roommates invited several friends over and they all got high and ate 30 bags of my SunChips, 17 Granola Bars, and 2 boxes of Macaroni and Cheese. What really pisses me off is that they think this is OK. Several times I’ve asked them to pay me back for these things because honestly it does add up and I’m not trying to bitch over a few dollars I’m bitching over tens of hundreds of dollars. How can I get my roommates to pay me back without starting a house war? And am I the asshole for asking them to pay me back for my groceries they didn’t even ask for? But I am fed up with asking. Now it is more like demanding and being told to fuck off.