luke warm to ice cold

I've been bitching about our new roommate for a month now, I think it has solidified that I most absolutely dont want to live with him. He's sort of like one of those guys with self esteem issues and always has something to prove. I also hate asking people for money, and dislike it when people open and eat your food and dont mention it, when confronted about, admit to say, offer to replace it but never does. It's fake and he's not into anything remotely interesting (but he doesnt know that) so I have to devise a plan to tell him, I, We dont want to live with him anymore. I cant decide if I should lie or if I should tell the brutal truth. Ill probably end up lying I guess. Its just to pathetic to live with a guy who spends every single day on the couch, and every other waking moment talking about getting girls, and eating McDonalds. I guess it takes a real loser to show you that maybe you were being a little too hard on your boyfriend.