Greedy people act in all sorts of different ways. Some people like to take some things just so someone else can’t get them, while others have the tendency to take things for themselves before anyone else. This guy’s roommate is a perfect example of the latter.
We’re not the only ones that think that certain boundaries keep getting crossed here, right? We just hope that the girlfriend stood up for herself in private at least, because if we were in her place, the boyfriend would be getting an earful about his actions.