Lex, doesn't your bf chip in for the bills and food? You can't shoulder that responsibility for both you and him. You need to make him pull in some funds to help pull his weight.

When you do get paid, get lots of Ramen noodles. All you need to make them is hot water.
I know, they're not the best thing to eat but they sure do fill the tummy. Get about 10 packages of them. (What is that, a buck?) Then stock it away for times like this. I have about 3 10-pack of Ramen noodles sitting in my cupboards, just in case.
You're going to have to ration out your food a lot more carefully and jump on whatever coupons and sales they have.
I just got 3 boxes of oatmeal for $3., that'll last me a good 4 weeks if not more and I bought 10 tv dinners for $10.
Right there, with the noodles, oatmeal and tv dinners, that was only $14. You'd still have $46. left over.

I guess this isn't helping your poor little belly now. I'm sorry, Lex. I use to be hungry, too. It really sucks.
I wish I could feed you through the computer.
Please, tell your bf to stop eating so darn much or he'll have to start chipping in.