So basically my roomate moved out of my room earlier this semester, and the way that it works in my school it basically turns into a single for the price of a double. There's a chance that next semester someone could try and move into the room with me, but the chances of that are fairly low. One of the people in my suite asked me if I had anyone lined up to move into the room and I said no. He then proceeded to ask if his friend (who I don't know) can move into the room with me, AITA if I tell him I want to try to keep the room to myself?