Oh Wacky, I'm trying to work on my judgmental side. But I don't see this ending well for the following reasons:
1. You live with a girl. (Have you banged her, too? Because that seems like a recipe for disaster. And by recipe, I mean Meryl Streep boiling bunnies.)
2. The girl you're obviously halfway in love with, or were a few months ago, lives downstairs. Directly beneath you. In a rent controlled apartment. This means thin walls and floors. See number one. (Rabbit stew, anyone?)
3. Numbers 1 and 2 will likely make your girlfriend jealous, too. On the relationship front, I don't see this ending well. Best case scenario is a burning sensation when you pee. Worst case scenario is dead rabbits. (Bitches be crazy when jealous. Trust me on this!)
4. Rent controlled apartment. You probably won't get in trouble for fraud or whatever happens when you make stuff up to get a rent-controlled apartment unless or until Girls 1, 2, and 3 get so pissed off about the situation that they turn you in.
I hope I'm wrong. But seriously, if Willes had this living situation, I would probably be sharpening knives in my spare time.