Go to your employer and see if you can get an advance from them; I did that once when I was in my 20's. They can take it out of your pay gradually, over a couple months. Or, I'd approach 15 friends and relatives (especially b/f's friends and relatives :-) coworkers, almost anyone you know for $20 each. If you hang out at a club or anything, get your boyfriend to "collect" there or if you know the owner, etc.

Did you approach your landlord and ask could you have an extention or anything?